1621371920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1583}}^1$

素因数の和:1693

約数の個数: 160

約数和(自身を含む): 4525424640

約数和(自身を除く): 2904052720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 59, 62, 70, 80, 112, 118, 124, 140, 155, 217, 236, 248, 280, 295, 310, 413, 434, 472, 496, 560, 590, 620, 826, 868, 944, 1085, 1180, 1240, 1583, 1652, 1736, 1829, 2065, 2170, 2360, 2480, 3166, 3304, 3472, 3658, 4130, 4340, 4720, 6332, 6608, 7316, 7915, 8260, 8680, 9145, 11081, 12664, 12803, 14632, 15830, 16520, 17360, 18290, 22162, 25328, 25606, 29264, 31660, 33040, 36580, 44324, 49073, 51212, 55405, 63320, 64015, 73160, 88648, 93397, 98146, 102424, 110810, 126640, 128030, 146320, 177296, 186794, 196292, 204848, 221620, 245365, 256060, 343511, 373588, 392584, 443240, 466985, 490730, 512120, 653779, 687022, 747176, 785168, 886480, 933970, 981460, 1024240, 1307558, 1374044, 1494352, 1717555, 1867940, 1962920, 2615116, 2748088, 2895307, 3268895, 3435110, 3735880, 3925840, 5230232, 5496176, 5790614, 6537790, 6870220, 7471760, 10460464, 11581228, 13075580, 13740440, 14476535, 20267149, 23162456, 26151160, 27480880, 28953070, 40534298, 46324912, 52302320, 57906140, 81068596, 101335745, 115812280, 162137192, 202671490, 231624560, 324274384, 405342980, 810685960, 1621371920]

約数ペア:

[(1, 1621371920), (2, 810685960), (4, 405342980), (5, 324274384), (7, 231624560), (8, 202671490), (10, 162137192), (14, 115812280), (16, 101335745), (20, 81068596), (28, 57906140), (31, 52302320), (35, 46324912), (40, 40534298), (56, 28953070), (59, 27480880), (62, 26151160), (70, 23162456), (80, 20267149), (112, 14476535), (118, 13740440), (124, 13075580), (140, 11581228), (155, 10460464), (217, 7471760), (236, 6870220), (248, 6537790), (280, 5790614), (295, 5496176), (310, 5230232), (413, 3925840), (434, 3735880), (472, 3435110), (496, 3268895), (560, 2895307), (590, 2748088), (620, 2615116), (826, 1962920), (868, 1867940), (944, 1717555), (1085, 1494352), (1180, 1374044), (1240, 1307558), (1583, 1024240), (1652, 981460), (1736, 933970), (1829, 886480), (2065, 785168), (2170, 747176), (2360, 687022), (2480, 653779), (3166, 512120), (3304, 490730), (3472, 466985), (3658, 443240), (4130, 392584), (4340, 373588), (4720, 343511), (6332, 256060), (6608, 245365), (7316, 221620), (7915, 204848), (8260, 196292), (8680, 186794), (9145, 177296), (11081, 146320), (12664, 128030), (12803, 126640), (14632, 110810), (15830, 102424), (16520, 98146), (17360, 93397), (18290, 88648), (22162, 73160), (25328, 64015), (25606, 63320), (29264, 55405), (31660, 51212), (33040, 49073), (36580, 44324)]