18839990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6301}}^1$

素因数の和:6344

約数の個数: 32

約数和(自身を含む): 38114496

約数和(自身を除く): 19274506

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 6301, 12602, 31505, 63010, 81913, 144923, 163826, 289846, 409565, 724615, 819130, 1449230, 1883999, 3767998, 9419995, 18839990]

約数ペア:

[(1, 18839990), (2, 9419995), (5, 3767998), (10, 1883999), (13, 1449230), (23, 819130), (26, 724615), (46, 409565), (65, 289846), (115, 163826), (130, 144923), (230, 81913), (299, 63010), (598, 31505), (1495, 12602), (2990, 6301)]