20631710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^2\times {\mathrm{59}}^1$

素因数の和:122

約数の個数: 72

約数和(自身を含む): 44097480

約数和(自身を除く): 23465770

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 59, 85, 110, 118, 121, 170, 187, 242, 289, 295, 374, 578, 590, 605, 649, 935, 1003, 1210, 1298, 1445, 1870, 2006, 2057, 2890, 3179, 3245, 4114, 5015, 6358, 6490, 7139, 10030, 10285, 11033, 14278, 15895, 17051, 20570, 22066, 31790, 34102, 34969, 35695, 55165, 69938, 71390, 85255, 110330, 121363, 170510, 174845, 187561, 242726, 349690, 375122, 606815, 937805, 1213630, 1875610, 2063171, 4126342, 10315855, 20631710]

約数ペア:

[(1, 20631710), (2, 10315855), (5, 4126342), (10, 2063171), (11, 1875610), (17, 1213630), (22, 937805), (34, 606815), (55, 375122), (59, 349690), (85, 242726), (110, 187561), (118, 174845), (121, 170510), (170, 121363), (187, 110330), (242, 85255), (289, 71390), (295, 69938), (374, 55165), (578, 35695), (590, 34969), (605, 34102), (649, 31790), (935, 22066), (1003, 20570), (1210, 17051), (1298, 15895), (1445, 14278), (1870, 11033), (2006, 10285), (2057, 10030), (2890, 7139), (3179, 6490), (3245, 6358), (4114, 5015)]