90405990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17623}}^1$

素因数の和:17658

約数の個数: 64

約数和(自身を含む): 253785600

約数和(自身を除く): 163379610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 90, 95, 114, 135, 171, 190, 270, 285, 342, 513, 570, 855, 1026, 1710, 2565, 5130, 17623, 35246, 52869, 88115, 105738, 158607, 176230, 264345, 317214, 334837, 475821, 528690, 669674, 793035, 951642, 1004511, 1586070, 1674185, 2009022, 2379105, 3013533, 3348370, 4758210, 5022555, 6027066, 9040599, 10045110, 15067665, 18081198, 30135330, 45202995, 90405990]

約数ペア:

[(1, 90405990), (2, 45202995), (3, 30135330), (5, 18081198), (6, 15067665), (9, 10045110), (10, 9040599), (15, 6027066), (18, 5022555), (19, 4758210), (27, 3348370), (30, 3013533), (38, 2379105), (45, 2009022), (54, 1674185), (57, 1586070), (90, 1004511), (95, 951642), (114, 793035), (135, 669674), (171, 528690), (190, 475821), (270, 334837), (285, 317214), (342, 264345), (513, 176230), (570, 158607), (855, 105738), (1026, 88115), (1710, 52869), (2565, 35246), (5130, 17623)]