311917705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1\times {\mathrm{389}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 417830400

約数和(自身を除く): 105912695

約数列:

[1, 5, 11, 55, 61, 239, 305, 389, 671, 1195, 1945, 2629, 3355, 4279, 13145, 14579, 21395, 23729, 72895, 92971, 118645, 160369, 261019, 464855, 801845, 1022681, 1305095, 5113405, 5671231, 28356155, 62383541, 311917705]

約数ペア:

[(1, 311917705), (5, 62383541), (11, 28356155), (55, 5671231), (61, 5113405), (239, 1305095), (305, 1022681), (389, 801845), (671, 464855), (1195, 261019), (1945, 160369), (2629, 118645), (3355, 92971), (4279, 72895), (13145, 23729), (14579, 21395)]