639821520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4021}}^1$

素因数の和:4070

約数の個数: 240

約数和(自身を含む): 2450749392

約数和(自身を除く): 1810927872

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 20, 24, 26, 30, 34, 36, 39, 40, 45, 48, 51, 52, 60, 65, 68, 72, 78, 80, 85, 90, 102, 104, 117, 120, 130, 136, 144, 153, 156, 170, 180, 195, 204, 208, 221, 234, 240, 255, 260, 272, 306, 312, 340, 360, 390, 408, 442, 468, 510, 520, 585, 612, 624, 663, 680, 720, 765, 780, 816, 884, 936, 1020, 1040, 1105, 1170, 1224, 1326, 1360, 1530, 1560, 1768, 1872, 1989, 2040, 2210, 2340, 2448, 2652, 3060, 3120, 3315, 3536, 3978, 4021, 4080, 4420, 4680, 5304, 6120, 6630, 7956, 8042, 8840, 9360, 9945, 10608, 12063, 12240, 13260, 15912, 16084, 17680, 19890, 20105, 24126, 26520, 31824, 32168, 36189, 39780, 40210, 48252, 52273, 53040, 60315, 64336, 68357, 72378, 79560, 80420, 96504, 104546, 120630, 136714, 144756, 156819, 159120, 160840, 180945, 193008, 205071, 209092, 241260, 261365, 273428, 289512, 313638, 321680, 341785, 361890, 410142, 418184, 470457, 482520, 522730, 546856, 579024, 615213, 627276, 683570, 723780, 784095, 820284, 836368, 888641, 940914, 965040, 1025355, 1045460, 1093712, 1230426, 1254552, 1367140, 1447560, 1568190, 1640568, 1777282, 1881828, 2050710, 2090920, 2352285, 2460852, 2509104, 2665923, 2734280, 2895120, 3076065, 3136380, 3281136, 3554564, 3763656, 4101420, 4181840, 4443205, 4704570, 4921704, 5331846, 5468560, 6152130, 6272760, 7109128, 7527312, 7997769, 8202840, 8886410, 9409140, 9843408, 10663692, 12304260, 12545520, 13329615, 14218256, 15995538, 16405680, 17772820, 18818280, 21327384, 24608520, 26659230, 31991076, 35545640, 37636560, 39988845, 42654768, 49217040, 53318460, 63982152, 71091280, 79977690, 106636920, 127964304, 159955380, 213273840, 319910760, 639821520]

約数ペア:

[(1, 639821520), (2, 319910760), (3, 213273840), (4, 159955380), (5, 127964304), (6, 106636920), (8, 79977690), (9, 71091280), (10, 63982152), (12, 53318460), (13, 49217040), (15, 42654768), (16, 39988845), (17, 37636560), (18, 35545640), (20, 31991076), (24, 26659230), (26, 24608520), (30, 21327384), (34, 18818280), (36, 17772820), (39, 16405680), (40, 15995538), (45, 14218256), (48, 13329615), (51, 12545520), (52, 12304260), (60, 10663692), (65, 9843408), (68, 9409140), (72, 8886410), (78, 8202840), (80, 7997769), (85, 7527312), (90, 7109128), (102, 6272760), (104, 6152130), (117, 5468560), (120, 5331846), (130, 4921704), (136, 4704570), (144, 4443205), (153, 4181840), (156, 4101420), (170, 3763656), (180, 3554564), (195, 3281136), (204, 3136380), (208, 3076065), (221, 2895120), (234, 2734280), (240, 2665923), (255, 2509104), (260, 2460852), (272, 2352285), (306, 2090920), (312, 2050710), (340, 1881828), (360, 1777282), (390, 1640568), (408, 1568190), (442, 1447560), (468, 1367140), (510, 1254552), (520, 1230426), (585, 1093712), (612, 1045460), (624, 1025355), (663, 965040), (680, 940914), (720, 888641), (765, 836368), (780, 820284), (816, 784095), (884, 723780), (936, 683570), (1020, 627276), (1040, 615213), (1105, 579024), (1170, 546856), (1224, 522730), (1326, 482520), (1360, 470457), (1530, 418184), (1560, 410142), (1768, 361890), (1872, 341785), (1989, 321680), (2040, 313638), (2210, 289512), (2340, 273428), (2448, 261365), (2652, 241260), (3060, 209092), (3120, 205071), (3315, 193008), (3536, 180945), (3978, 160840), (4021, 159120), (4080, 156819), (4420, 144756), (4680, 136714), (5304, 120630), (6120, 104546), (6630, 96504), (7956, 80420), (8042, 79560), (8840, 72378), (9360, 68357), (9945, 64336), (10608, 60315), (12063, 53040), (12240, 52273), (13260, 48252), (15912, 40210), (16084, 39780), (17680, 36189), (19890, 32168), (20105, 31824), (24126, 26520)]