8572640

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{409}}^1$

素因数の和:555

約数の個数: 48

約数和(自身を含む): 20457360

約数和(自身を除く): 11884720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 409, 524, 655, 818, 1048, 1310, 1636, 2045, 2096, 2620, 3272, 4090, 4192, 5240, 6544, 8180, 10480, 13088, 16360, 20960, 32720, 53579, 65440, 107158, 214316, 267895, 428632, 535790, 857264, 1071580, 1714528, 2143160, 4286320, 8572640]

約数ペア:

[(1, 8572640), (2, 4286320), (4, 2143160), (5, 1714528), (8, 1071580), (10, 857264), (16, 535790), (20, 428632), (32, 267895), (40, 214316), (80, 107158), (131, 65440), (160, 53579), (262, 32720), (409, 20960), (524, 16360), (655, 13088), (818, 10480), (1048, 8180), (1310, 6544), (1636, 5240), (2045, 4192), (2096, 4090), (2620, 3272)]