20987297280

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{19381}}^1$

素因数の和:19457

約数の個数: 240

約数和(自身を含む): 74235230784

約数和(自身を除く): 53247933504

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 47, 48, 60, 64, 72, 80, 90, 94, 96, 120, 128, 141, 144, 160, 180, 188, 192, 235, 240, 256, 282, 288, 320, 360, 376, 384, 423, 470, 480, 512, 564, 576, 640, 705, 720, 752, 768, 846, 940, 960, 1128, 1152, 1280, 1410, 1440, 1504, 1536, 1692, 1880, 1920, 2115, 2256, 2304, 2560, 2820, 2880, 3008, 3384, 3760, 3840, 4230, 4512, 4608, 5640, 5760, 6016, 6768, 7520, 7680, 8460, 9024, 11280, 11520, 12032, 13536, 15040, 16920, 18048, 19381, 22560, 23040, 24064, 27072, 30080, 33840, 36096, 38762, 45120, 54144, 58143, 60160, 67680, 72192, 77524, 90240, 96905, 108288, 116286, 120320, 135360, 155048, 174429, 180480, 193810, 216576, 232572, 270720, 290715, 310096, 348858, 360960, 387620, 465144, 541440, 581430, 620192, 697716, 775240, 872145, 910907, 930288, 1082880, 1162860, 1240384, 1395432, 1550480, 1744290, 1821814, 1860576, 2325720, 2480768, 2732721, 2790864, 3100960, 3488580, 3643628, 3721152, 4554535, 4651440, 4961536, 5465442, 5581728, 6201920, 6977160, 7287256, 7442304, 8198163, 9109070, 9302880, 9923072, 10930884, 11163456, 12403840, 13663605, 13954320, 14574512, 14884608, 16396326, 18218140, 18605760, 21861768, 22326912, 24807680, 27327210, 27908640, 29149024, 29769216, 32792652, 36436280, 37211520, 40990815, 43723536, 44653824, 49615360, 54654420, 55817280, 58298048, 65585304, 72872560, 74423040, 81981630, 87447072, 89307648, 109308840, 111634560, 116596096, 131170608, 145745120, 148846080, 163963260, 174894144, 218617680, 223269120, 233192192, 262341216, 291490240, 327926520, 349788288, 437235360, 446538240, 466384384, 524682432, 582980480, 655853040, 699576576, 874470720, 1049364864, 1165960960, 1311706080, 1399153152, 1748941440, 2098729728, 2331921920, 2623412160, 3497882880, 4197459456, 5246824320, 6995765760, 10493648640, 20987297280]

約数ペア:

[(1, 20987297280), (2, 10493648640), (3, 6995765760), (4, 5246824320), (5, 4197459456), (6, 3497882880), (8, 2623412160), (9, 2331921920), (10, 2098729728), (12, 1748941440), (15, 1399153152), (16, 1311706080), (18, 1165960960), (20, 1049364864), (24, 874470720), (30, 699576576), (32, 655853040), (36, 582980480), (40, 524682432), (45, 466384384), (47, 446538240), (48, 437235360), (60, 349788288), (64, 327926520), (72, 291490240), (80, 262341216), (90, 233192192), (94, 223269120), (96, 218617680), (120, 174894144), (128, 163963260), (141, 148846080), (144, 145745120), (160, 131170608), (180, 116596096), (188, 111634560), (192, 109308840), (235, 89307648), (240, 87447072), (256, 81981630), (282, 74423040), (288, 72872560), (320, 65585304), (360, 58298048), (376, 55817280), (384, 54654420), (423, 49615360), (470, 44653824), (480, 43723536), (512, 40990815), (564, 37211520), (576, 36436280), (640, 32792652), (705, 29769216), (720, 29149024), (752, 27908640), (768, 27327210), (846, 24807680), (940, 22326912), (960, 21861768), (1128, 18605760), (1152, 18218140), (1280, 16396326), (1410, 14884608), (1440, 14574512), (1504, 13954320), (1536, 13663605), (1692, 12403840), (1880, 11163456), (1920, 10930884), (2115, 9923072), (2256, 9302880), (2304, 9109070), (2560, 8198163), (2820, 7442304), (2880, 7287256), (3008, 6977160), (3384, 6201920), (3760, 5581728), (3840, 5465442), (4230, 4961536), (4512, 4651440), (4608, 4554535), (5640, 3721152), (5760, 3643628), (6016, 3488580), (6768, 3100960), (7520, 2790864), (7680, 2732721), (8460, 2480768), (9024, 2325720), (11280, 1860576), (11520, 1821814), (12032, 1744290), (13536, 1550480), (15040, 1395432), (16920, 1240384), (18048, 1162860), (19381, 1082880), (22560, 930288), (23040, 910907), (24064, 872145), (27072, 775240), (30080, 697716), (33840, 620192), (36096, 581430), (38762, 541440), (45120, 465144), (54144, 387620), (58143, 360960), (60160, 348858), (67680, 310096), (72192, 290715), (77524, 270720), (90240, 232572), (96905, 216576), (108288, 193810), (116286, 180480), (120320, 174429), (135360, 155048)]