20574720

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:95

約数の個数: 240

約数和(自身を含む): 76602240

約数和(自身を除く): 56027520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 47, 48, 57, 60, 64, 72, 76, 80, 90, 94, 95, 96, 114, 120, 128, 141, 144, 152, 160, 171, 180, 188, 190, 192, 228, 235, 240, 256, 282, 285, 288, 304, 320, 342, 360, 376, 380, 384, 423, 456, 470, 480, 512, 564, 570, 576, 608, 640, 684, 705, 720, 752, 760, 768, 846, 855, 893, 912, 940, 960, 1128, 1140, 1152, 1216, 1280, 1368, 1410, 1440, 1504, 1520, 1536, 1692, 1710, 1786, 1824, 1880, 1920, 2115, 2256, 2280, 2304, 2432, 2560, 2679, 2736, 2820, 2880, 3008, 3040, 3384, 3420, 3572, 3648, 3760, 3840, 4230, 4465, 4512, 4560, 4608, 4864, 5358, 5472, 5640, 5760, 6016, 6080, 6768, 6840, 7144, 7296, 7520, 7680, 8037, 8460, 8930, 9024, 9120, 9728, 10716, 10944, 11280, 11520, 12032, 12160, 13395, 13536, 13680, 14288, 14592, 15040, 16074, 16920, 17860, 18048, 18240, 21432, 21888, 22560, 23040, 24064, 24320, 26790, 27072, 27360, 28576, 29184, 30080, 32148, 33840, 35720, 36096, 36480, 40185, 42864, 43776, 45120, 48640, 53580, 54144, 54720, 57152, 60160, 64296, 67680, 71440, 72192, 72960, 80370, 85728, 87552, 90240, 107160, 108288, 109440, 114304, 120320, 128592, 135360, 142880, 145920, 160740, 171456, 180480, 214320, 216576, 218880, 228608, 257184, 270720, 285760, 321480, 342912, 360960, 428640, 437760, 457216, 514368, 541440, 571520, 642960, 685824, 857280, 1028736, 1082880, 1143040, 1285920, 1371648, 1714560, 2057472, 2286080, 2571840, 3429120, 4114944, 5143680, 6858240, 10287360, 20574720]

約数ペア:

[(1, 20574720), (2, 10287360), (3, 6858240), (4, 5143680), (5, 4114944), (6, 3429120), (8, 2571840), (9, 2286080), (10, 2057472), (12, 1714560), (15, 1371648), (16, 1285920), (18, 1143040), (19, 1082880), (20, 1028736), (24, 857280), (30, 685824), (32, 642960), (36, 571520), (38, 541440), (40, 514368), (45, 457216), (47, 437760), (48, 428640), (57, 360960), (60, 342912), (64, 321480), (72, 285760), (76, 270720), (80, 257184), (90, 228608), (94, 218880), (95, 216576), (96, 214320), (114, 180480), (120, 171456), (128, 160740), (141, 145920), (144, 142880), (152, 135360), (160, 128592), (171, 120320), (180, 114304), (188, 109440), (190, 108288), (192, 107160), (228, 90240), (235, 87552), (240, 85728), (256, 80370), (282, 72960), (285, 72192), (288, 71440), (304, 67680), (320, 64296), (342, 60160), (360, 57152), (376, 54720), (380, 54144), (384, 53580), (423, 48640), (456, 45120), (470, 43776), (480, 42864), (512, 40185), (564, 36480), (570, 36096), (576, 35720), (608, 33840), (640, 32148), (684, 30080), (705, 29184), (720, 28576), (752, 27360), (760, 27072), (768, 26790), (846, 24320), (855, 24064), (893, 23040), (912, 22560), (940, 21888), (960, 21432), (1128, 18240), (1140, 18048), (1152, 17860), (1216, 16920), (1280, 16074), (1368, 15040), (1410, 14592), (1440, 14288), (1504, 13680), (1520, 13536), (1536, 13395), (1692, 12160), (1710, 12032), (1786, 11520), (1824, 11280), (1880, 10944), (1920, 10716), (2115, 9728), (2256, 9120), (2280, 9024), (2304, 8930), (2432, 8460), (2560, 8037), (2679, 7680), (2736, 7520), (2820, 7296), (2880, 7144), (3008, 6840), (3040, 6768), (3384, 6080), (3420, 6016), (3572, 5760), (3648, 5640), (3760, 5472), (3840, 5358), (4230, 4864), (4465, 4608), (4512, 4560)]