90212420

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1\times {\mathrm{223}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 193052160

約数和(自身を除く): 102839740

約数列:

[1, 2, 4, 5, 10, 20, 113, 179, 223, 226, 358, 446, 452, 565, 716, 892, 895, 1115, 1130, 1790, 2230, 2260, 3580, 4460, 20227, 25199, 39917, 40454, 50398, 79834, 80908, 100796, 101135, 125995, 159668, 199585, 202270, 251990, 399170, 404540, 503980, 798340, 4510621, 9021242, 18042484, 22553105, 45106210, 90212420]

約数ペア:

[(1, 90212420), (2, 45106210), (4, 22553105), (5, 18042484), (10, 9021242), (20, 4510621), (113, 798340), (179, 503980), (223, 404540), (226, 399170), (358, 251990), (446, 202270), (452, 199585), (565, 159668), (716, 125995), (892, 101135), (895, 100796), (1115, 80908), (1130, 79834), (1790, 50398), (2230, 40454), (2260, 39917), (3580, 25199), (4460, 20227)]