400988785

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{349}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 513676800

約数和(自身を除く): 112688015

約数列:

[1, 5, 23, 97, 103, 115, 349, 485, 515, 1745, 2231, 2369, 8027, 9991, 11155, 11845, 33853, 35947, 40135, 49955, 169265, 179735, 229793, 778619, 826781, 1148965, 3486859, 3893095, 4133905, 17434295, 80197757, 400988785]

約数ペア:

[(1, 400988785), (5, 80197757), (23, 17434295), (97, 4133905), (103, 3893095), (115, 3486859), (349, 1148965), (485, 826781), (515, 778619), (1745, 229793), (2231, 179735), (2369, 169265), (8027, 49955), (9991, 40135), (11155, 35947), (11845, 33853)]