1640257620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{4639}}^1$

素因数の和:4805

約数の個数: 96

約数和(自身を含む): 4714536960

約数和(自身を除く): 3074279340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 83, 142, 166, 213, 249, 284, 332, 355, 415, 426, 498, 710, 830, 852, 996, 1065, 1245, 1420, 1660, 2130, 2490, 4260, 4639, 4980, 5893, 9278, 11786, 13917, 17679, 18556, 23195, 23572, 27834, 29465, 35358, 46390, 55668, 58930, 69585, 70716, 88395, 92780, 117860, 139170, 176790, 278340, 329369, 353580, 385037, 658738, 770074, 988107, 1155111, 1317476, 1540148, 1646845, 1925185, 1976214, 2310222, 3293690, 3850370, 3952428, 4620444, 4940535, 5775555, 6587380, 7700740, 9881070, 11551110, 19762140, 23102220, 27337627, 54675254, 82012881, 109350508, 136688135, 164025762, 273376270, 328051524, 410064405, 546752540, 820128810, 1640257620]

約数ペア:

[(1, 1640257620), (2, 820128810), (3, 546752540), (4, 410064405), (5, 328051524), (6, 273376270), (10, 164025762), (12, 136688135), (15, 109350508), (20, 82012881), (30, 54675254), (60, 27337627), (71, 23102220), (83, 19762140), (142, 11551110), (166, 9881070), (213, 7700740), (249, 6587380), (284, 5775555), (332, 4940535), (355, 4620444), (415, 3952428), (426, 3850370), (498, 3293690), (710, 2310222), (830, 1976214), (852, 1925185), (996, 1646845), (1065, 1540148), (1245, 1317476), (1420, 1155111), (1660, 988107), (2130, 770074), (2490, 658738), (4260, 385037), (4639, 353580), (4980, 329369), (5893, 278340), (9278, 176790), (11786, 139170), (13917, 117860), (17679, 92780), (18556, 88395), (23195, 70716), (23572, 69585), (27834, 58930), (29465, 55668), (35358, 46390)]