19784781520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{317}}^1\times {\mathrm{1889}}^1$

素因数の和:2285

約数の個数: 160

約数和(自身を含む): 53659065600

約数和(自身を除く): 33874284080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 59, 70, 80, 112, 118, 140, 236, 280, 295, 317, 413, 472, 560, 590, 634, 826, 944, 1180, 1268, 1585, 1652, 1889, 2065, 2219, 2360, 2536, 3170, 3304, 3778, 4130, 4438, 4720, 5072, 6340, 6608, 7556, 8260, 8876, 9445, 11095, 12680, 13223, 15112, 16520, 17752, 18703, 18890, 22190, 25360, 26446, 30224, 33040, 35504, 37406, 37780, 44380, 52892, 66115, 74812, 75560, 88760, 93515, 105784, 111451, 130921, 132230, 149624, 151120, 177520, 187030, 211568, 222902, 261842, 264460, 299248, 374060, 445804, 523684, 528920, 557255, 598813, 654605, 748120, 780157, 891608, 1047368, 1057840, 1114510, 1197626, 1309210, 1496240, 1560314, 1783216, 2094736, 2229020, 2395252, 2618420, 2994065, 3120628, 3900785, 4191691, 4458040, 4790504, 5236840, 5988130, 6241256, 7801570, 8383382, 8916080, 9581008, 10473680, 11976260, 12482512, 15603140, 16766764, 20958455, 23952520, 31206280, 33533528, 35329967, 41916910, 47905040, 62412560, 67067056, 70659934, 83833820, 141319868, 167667640, 176649835, 247309769, 282639736, 335335280, 353299670, 494619538, 565279472, 706599340, 989239076, 1236548845, 1413198680, 1978478152, 2473097690, 2826397360, 3956956304, 4946195380, 9892390760, 19784781520]

約数ペア:

[(1, 19784781520), (2, 9892390760), (4, 4946195380), (5, 3956956304), (7, 2826397360), (8, 2473097690), (10, 1978478152), (14, 1413198680), (16, 1236548845), (20, 989239076), (28, 706599340), (35, 565279472), (40, 494619538), (56, 353299670), (59, 335335280), (70, 282639736), (80, 247309769), (112, 176649835), (118, 167667640), (140, 141319868), (236, 83833820), (280, 70659934), (295, 67067056), (317, 62412560), (413, 47905040), (472, 41916910), (560, 35329967), (590, 33533528), (634, 31206280), (826, 23952520), (944, 20958455), (1180, 16766764), (1268, 15603140), (1585, 12482512), (1652, 11976260), (1889, 10473680), (2065, 9581008), (2219, 8916080), (2360, 8383382), (2536, 7801570), (3170, 6241256), (3304, 5988130), (3778, 5236840), (4130, 4790504), (4438, 4458040), (4720, 4191691), (5072, 3900785), (6340, 3120628), (6608, 2994065), (7556, 2618420), (8260, 2395252), (8876, 2229020), (9445, 2094736), (11095, 1783216), (12680, 1560314), (13223, 1496240), (15112, 1309210), (16520, 1197626), (17752, 1114510), (18703, 1057840), (18890, 1047368), (22190, 891608), (25360, 780157), (26446, 748120), (30224, 654605), (33040, 598813), (35504, 557255), (37406, 528920), (37780, 523684), (44380, 445804), (52892, 374060), (66115, 299248), (74812, 264460), (75560, 261842), (88760, 222902), (93515, 211568), (105784, 187030), (111451, 177520), (130921, 151120), (132230, 149624)]