18848155

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 25878528

約数和(自身を除く): 7030373

約数列:

[1, 5, 17, 23, 31, 85, 115, 155, 311, 391, 527, 713, 1555, 1955, 2635, 3565, 5287, 7153, 9641, 12121, 26435, 35765, 48205, 60605, 121601, 163897, 221743, 608005, 819485, 1108715, 3769631, 18848155]

約数ペア:

[(1, 18848155), (5, 3769631), (17, 1108715), (23, 819485), (31, 608005), (85, 221743), (115, 163897), (155, 121601), (311, 60605), (391, 48205), (527, 35765), (713, 26435), (1555, 12121), (1955, 9641), (2635, 7153), (3565, 5287)]