89909140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{1061}}^1$

素因数の和:1312

約数の個数: 48

約数和(自身を含む): 199825920

約数和(自身を除く): 109916780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 223, 380, 446, 892, 1061, 1115, 2122, 2230, 4237, 4244, 4460, 5305, 8474, 10610, 16948, 20159, 21185, 21220, 40318, 42370, 80636, 84740, 100795, 201590, 236603, 403180, 473206, 946412, 1183015, 2366030, 4495457, 4732060, 8990914, 17981828, 22477285, 44954570, 89909140]

約数ペア:

[(1, 89909140), (2, 44954570), (4, 22477285), (5, 17981828), (10, 8990914), (19, 4732060), (20, 4495457), (38, 2366030), (76, 1183015), (95, 946412), (190, 473206), (223, 403180), (380, 236603), (446, 201590), (892, 100795), (1061, 84740), (1115, 80636), (2122, 42370), (2230, 40318), (4237, 21220), (4244, 21185), (4460, 20159), (5305, 16948), (8474, 10610)]