664156625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{21001}}^1$

素因数の和:21050

約数の個数: 32

約数和(自身を含む): 943577856

約数和(自身を除く): 279421231

約数列:

[1, 5, 11, 23, 25, 55, 115, 125, 253, 275, 575, 1265, 1375, 2875, 6325, 21001, 31625, 105005, 231011, 483023, 525025, 1155055, 2415115, 2625125, 5313253, 5775275, 12075575, 26566265, 28876375, 60377875, 132831325, 664156625]

約数ペア:

[(1, 664156625), (5, 132831325), (11, 60377875), (23, 28876375), (25, 26566265), (55, 12075575), (115, 5775275), (125, 5313253), (253, 2625125), (275, 2415115), (575, 1155055), (1265, 525025), (1375, 483023), (2875, 231011), (6325, 105005), (21001, 31625)]