90169460

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1\times {\mathrm{283}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 193233600

約数和(自身を除く): 103064140

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 179, 283, 356, 358, 445, 566, 716, 890, 895, 1132, 1415, 1780, 1790, 2830, 3580, 5660, 15931, 25187, 31862, 50374, 50657, 63724, 79655, 100748, 101314, 125935, 159310, 202628, 251870, 253285, 318620, 503740, 506570, 1013140, 4508473, 9016946, 18033892, 22542365, 45084730, 90169460]

約数ペア:

[(1, 90169460), (2, 45084730), (4, 22542365), (5, 18033892), (10, 9016946), (20, 4508473), (89, 1013140), (178, 506570), (179, 503740), (283, 318620), (356, 253285), (358, 251870), (445, 202628), (566, 159310), (716, 125935), (890, 101314), (895, 100748), (1132, 79655), (1415, 63724), (1780, 50657), (1790, 50374), (2830, 31862), (3580, 25187), (5660, 15931)]