405201005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{320317}}^1$

素因数の和:320356

約数の個数: 16

約数和(自身を含む): 553509504

約数和(自身を除く): 148308499

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 320317, 1601585, 3523487, 7367291, 17617435, 36836455, 81040201, 405201005]

約数ペア:

[(1, 405201005), (5, 81040201), (11, 36836455), (23, 17617435), (55, 7367291), (115, 3523487), (253, 1601585), (1265, 320317)]