308521720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1$

素因数の和:593

約数の個数: 128

約数和(自身を含む): 793800000

約数和(自身を除く): 485278280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 41, 52, 58, 65, 82, 104, 116, 130, 145, 164, 205, 232, 260, 290, 328, 377, 410, 499, 520, 533, 580, 754, 820, 998, 1066, 1160, 1189, 1508, 1640, 1885, 1996, 2132, 2378, 2495, 2665, 3016, 3770, 3992, 4264, 4756, 4990, 5330, 5945, 6487, 7540, 9512, 9980, 10660, 11890, 12974, 14471, 15080, 15457, 19960, 20459, 21320, 23780, 25948, 28942, 30914, 32435, 40918, 47560, 51896, 57884, 61828, 64870, 72355, 77285, 81836, 102295, 115768, 123656, 129740, 144710, 154570, 163672, 188123, 204590, 259480, 265967, 289420, 309140, 376246, 409180, 531934, 578840, 593311, 618280, 752492, 818360, 940615, 1063868, 1186622, 1329835, 1504984, 1881230, 2127736, 2373244, 2659670, 2966555, 3762460, 4746488, 5319340, 5933110, 7524920, 7713043, 10638680, 11866220, 15426086, 23732440, 30852172, 38565215, 61704344, 77130430, 154260860, 308521720]

約数ペア:

[(1, 308521720), (2, 154260860), (4, 77130430), (5, 61704344), (8, 38565215), (10, 30852172), (13, 23732440), (20, 15426086), (26, 11866220), (29, 10638680), (40, 7713043), (41, 7524920), (52, 5933110), (58, 5319340), (65, 4746488), (82, 3762460), (104, 2966555), (116, 2659670), (130, 2373244), (145, 2127736), (164, 1881230), (205, 1504984), (232, 1329835), (260, 1186622), (290, 1063868), (328, 940615), (377, 818360), (410, 752492), (499, 618280), (520, 593311), (533, 578840), (580, 531934), (754, 409180), (820, 376246), (998, 309140), (1066, 289420), (1160, 265967), (1189, 259480), (1508, 204590), (1640, 188123), (1885, 163672), (1996, 154570), (2132, 144710), (2378, 129740), (2495, 123656), (2665, 115768), (3016, 102295), (3770, 81836), (3992, 77285), (4264, 72355), (4756, 64870), (4990, 61828), (5330, 57884), (5945, 51896), (6487, 47560), (7540, 40918), (9512, 32435), (9980, 30914), (10660, 28942), (11890, 25948), (12974, 23780), (14471, 21320), (15080, 20459), (15457, 19960)]