50811980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 116046000

約数和(自身を除く): 65234020

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 59, 68, 85, 118, 149, 170, 236, 289, 295, 298, 340, 578, 590, 596, 745, 1003, 1156, 1180, 1445, 1490, 2006, 2533, 2890, 2980, 4012, 5015, 5066, 5780, 8791, 10030, 10132, 12665, 17051, 17582, 20060, 25330, 34102, 35164, 43061, 43955, 50660, 68204, 85255, 86122, 87910, 149447, 170510, 172244, 175820, 215305, 298894, 341020, 430610, 597788, 747235, 861220, 1494470, 2540599, 2988940, 5081198, 10162396, 12702995, 25405990, 50811980]

約数ペア:

[(1, 50811980), (2, 25405990), (4, 12702995), (5, 10162396), (10, 5081198), (17, 2988940), (20, 2540599), (34, 1494470), (59, 861220), (68, 747235), (85, 597788), (118, 430610), (149, 341020), (170, 298894), (236, 215305), (289, 175820), (295, 172244), (298, 170510), (340, 149447), (578, 87910), (590, 86122), (596, 85255), (745, 68204), (1003, 50660), (1156, 43955), (1180, 43061), (1445, 35164), (1490, 34102), (2006, 25330), (2533, 20060), (2890, 17582), (2980, 17051), (4012, 12665), (5015, 10132), (5066, 10030), (5780, 8791)]