20128160

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9677}}^1$

素因数の和:9705

約数の個数: 48

約数和(自身を含む): 51215976

約数和(自身を除く): 31087816

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9677, 19354, 38708, 48385, 77416, 96770, 125801, 154832, 193540, 251602, 309664, 387080, 503204, 629005, 774160, 1006408, 1258010, 1548320, 2012816, 2516020, 4025632, 5032040, 10064080, 20128160]

約数ペア:

[(1, 20128160), (2, 10064080), (4, 5032040), (5, 4025632), (8, 2516020), (10, 2012816), (13, 1548320), (16, 1258010), (20, 1006408), (26, 774160), (32, 629005), (40, 503204), (52, 387080), (65, 309664), (80, 251602), (104, 193540), (130, 154832), (160, 125801), (208, 96770), (260, 77416), (416, 48385), (520, 38708), (1040, 19354), (2080, 9677)]