128957920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1$

素因数の和:573

約数の個数: 192

約数和(自身を含む): 397789056

約数和(自身を除く): 268831136

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 17, 20, 26, 28, 32, 34, 35, 40, 52, 56, 65, 68, 70, 80, 85, 91, 104, 112, 119, 130, 136, 140, 160, 170, 182, 208, 221, 224, 238, 260, 272, 280, 340, 364, 416, 442, 455, 476, 520, 521, 544, 560, 595, 680, 728, 884, 910, 952, 1040, 1042, 1105, 1120, 1190, 1360, 1456, 1547, 1768, 1820, 1904, 2080, 2084, 2210, 2380, 2605, 2720, 2912, 3094, 3536, 3640, 3647, 3808, 4168, 4420, 4760, 5210, 6188, 6773, 7072, 7280, 7294, 7735, 8336, 8840, 8857, 9520, 10420, 12376, 13546, 14560, 14588, 15470, 16672, 17680, 17714, 18235, 19040, 20840, 24752, 27092, 29176, 30940, 33865, 35360, 35428, 36470, 41680, 44285, 47411, 49504, 54184, 58352, 61880, 61999, 67730, 70856, 72940, 83360, 88570, 94822, 108368, 115141, 116704, 123760, 123998, 135460, 141712, 145880, 177140, 189644, 216736, 230282, 237055, 247520, 247996, 270920, 283424, 291760, 309995, 354280, 379288, 460564, 474110, 495992, 541840, 575705, 583520, 619990, 708560, 758576, 805987, 921128, 948220, 991984, 1083680, 1151410, 1239980, 1417120, 1517152, 1611974, 1842256, 1896440, 1983968, 2302820, 2479960, 3223948, 3684512, 3792880, 4029935, 4605640, 4959920, 6447896, 7585760, 8059870, 9211280, 9919840, 12895792, 16119740, 18422560, 25791584, 32239480, 64478960, 128957920]

約数ペア:

[(1, 128957920), (2, 64478960), (4, 32239480), (5, 25791584), (7, 18422560), (8, 16119740), (10, 12895792), (13, 9919840), (14, 9211280), (16, 8059870), (17, 7585760), (20, 6447896), (26, 4959920), (28, 4605640), (32, 4029935), (34, 3792880), (35, 3684512), (40, 3223948), (52, 2479960), (56, 2302820), (65, 1983968), (68, 1896440), (70, 1842256), (80, 1611974), (85, 1517152), (91, 1417120), (104, 1239980), (112, 1151410), (119, 1083680), (130, 991984), (136, 948220), (140, 921128), (160, 805987), (170, 758576), (182, 708560), (208, 619990), (221, 583520), (224, 575705), (238, 541840), (260, 495992), (272, 474110), (280, 460564), (340, 379288), (364, 354280), (416, 309995), (442, 291760), (455, 283424), (476, 270920), (520, 247996), (521, 247520), (544, 237055), (560, 230282), (595, 216736), (680, 189644), (728, 177140), (884, 145880), (910, 141712), (952, 135460), (1040, 123998), (1042, 123760), (1105, 116704), (1120, 115141), (1190, 108368), (1360, 94822), (1456, 88570), (1547, 83360), (1768, 72940), (1820, 70856), (1904, 67730), (2080, 61999), (2084, 61880), (2210, 58352), (2380, 54184), (2605, 49504), (2720, 47411), (2912, 44285), (3094, 41680), (3536, 36470), (3640, 35428), (3647, 35360), (3808, 33865), (4168, 30940), (4420, 29176), (4760, 27092), (5210, 24752), (6188, 20840), (6773, 19040), (7072, 18235), (7280, 17714), (7294, 17680), (7735, 16672), (8336, 15470), (8840, 14588), (8857, 14560), (9520, 13546), (10420, 12376)]