89309140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1\times {\mathrm{509}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 194664960

約数和(自身を除く): 105355820

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 283, 310, 509, 566, 620, 1018, 1132, 1415, 2036, 2545, 2830, 5090, 5660, 8773, 10180, 15779, 17546, 31558, 35092, 43865, 63116, 78895, 87730, 144047, 157790, 175460, 288094, 315580, 576188, 720235, 1440470, 2880940, 4465457, 8930914, 17861828, 22327285, 44654570, 89309140]

約数ペア:

[(1, 89309140), (2, 44654570), (4, 22327285), (5, 17861828), (10, 8930914), (20, 4465457), (31, 2880940), (62, 1440470), (124, 720235), (155, 576188), (283, 315580), (310, 288094), (509, 175460), (566, 157790), (620, 144047), (1018, 87730), (1132, 78895), (1415, 63116), (2036, 43865), (2545, 35092), (2830, 31558), (5090, 17546), (5660, 15779), (8773, 10180)]