251014340

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1\times {\mathrm{643}}^1$

素因数の和:932

約数の個数: 48

約数和(自身を含む): 535550400

約数和(自身を除く): 284536060

約数列:

[1, 2, 4, 5, 10, 20, 131, 149, 262, 298, 524, 596, 643, 655, 745, 1286, 1310, 1490, 2572, 2620, 2980, 3215, 6430, 12860, 19519, 39038, 78076, 84233, 95807, 97595, 168466, 191614, 195190, 336932, 383228, 390380, 421165, 479035, 842330, 958070, 1684660, 1916140, 12550717, 25101434, 50202868, 62753585, 125507170, 251014340]

約数ペア:

[(1, 251014340), (2, 125507170), (4, 62753585), (5, 50202868), (10, 25101434), (20, 12550717), (131, 1916140), (149, 1684660), (262, 958070), (298, 842330), (524, 479035), (596, 421165), (643, 390380), (655, 383228), (745, 336932), (1286, 195190), (1310, 191614), (1490, 168466), (2572, 97595), (2620, 95807), (2980, 84233), (3215, 78076), (6430, 39038), (12860, 19519)]