90805660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:427

約数の個数: 72

約数和(自身を含む): 211821120

約数和(自身を除く): 121015460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 157, 220, 239, 242, 314, 478, 484, 605, 628, 785, 956, 1195, 1210, 1570, 1727, 2390, 2420, 2629, 3140, 3454, 4780, 5258, 6908, 8635, 10516, 13145, 17270, 18997, 26290, 28919, 34540, 37523, 37994, 52580, 57838, 75046, 75988, 94985, 115676, 144595, 150092, 187615, 189970, 289190, 375230, 379940, 412753, 578380, 750460, 825506, 1651012, 2063765, 4127530, 4540283, 8255060, 9080566, 18161132, 22701415, 45402830, 90805660]

約数ペア:

[(1, 90805660), (2, 45402830), (4, 22701415), (5, 18161132), (10, 9080566), (11, 8255060), (20, 4540283), (22, 4127530), (44, 2063765), (55, 1651012), (110, 825506), (121, 750460), (157, 578380), (220, 412753), (239, 379940), (242, 375230), (314, 289190), (478, 189970), (484, 187615), (605, 150092), (628, 144595), (785, 115676), (956, 94985), (1195, 75988), (1210, 75046), (1570, 57838), (1727, 52580), (2390, 37994), (2420, 37523), (2629, 34540), (3140, 28919), (3454, 26290), (4780, 18997), (5258, 17270), (6908, 13145), (8635, 10516)]