19857040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{601}}^1$

素因数の和:680

約数の個数: 80

約数和(自身を含む): 53746560

約数和(自身を除く): 33889520

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, 413, 472, 560, 590, 601, 826, 944, 1180, 1202, 1652, 2065, 2360, 2404, 3005, 3304, 4130, 4207, 4720, 4808, 6010, 6608, 8260, 8414, 9616, 12020, 16520, 16828, 21035, 24040, 33040, 33656, 35459, 42070, 48080, 67312, 70918, 84140, 141836, 168280, 177295, 248213, 283672, 336560, 354590, 496426, 567344, 709180, 992852, 1241065, 1418360, 1985704, 2482130, 2836720, 3971408, 4964260, 9928520, 19857040]

約数ペア:

[(1, 19857040), (2, 9928520), (4, 4964260), (5, 3971408), (7, 2836720), (8, 2482130), (10, 1985704), (14, 1418360), (16, 1241065), (20, 992852), (28, 709180), (35, 567344), (40, 496426), (56, 354590), (59, 336560), (70, 283672), (80, 248213), (112, 177295), (118, 168280), (140, 141836), (236, 84140), (280, 70918), (295, 67312), (413, 48080), (472, 42070), (560, 35459), (590, 33656), (601, 33040), (826, 24040), (944, 21035), (1180, 16828), (1202, 16520), (1652, 12020), (2065, 9616), (2360, 8414), (2404, 8260), (3005, 6608), (3304, 6010), (4130, 4808), (4207, 4720)]