18405530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 39747456

約数和(自身を除く): 21341926

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 61, 65, 110, 122, 130, 143, 211, 286, 305, 422, 610, 671, 715, 793, 1055, 1342, 1430, 1586, 2110, 2321, 2743, 3355, 3965, 4642, 5486, 6710, 7930, 8723, 11605, 12871, 13715, 17446, 23210, 25742, 27430, 30173, 43615, 60346, 64355, 87230, 128710, 141581, 150865, 167323, 283162, 301730, 334646, 707905, 836615, 1415810, 1673230, 1840553, 3681106, 9202765, 18405530]

約数ペア:

[(1, 18405530), (2, 9202765), (5, 3681106), (10, 1840553), (11, 1673230), (13, 1415810), (22, 836615), (26, 707905), (55, 334646), (61, 301730), (65, 283162), (110, 167323), (122, 150865), (130, 141581), (143, 128710), (211, 87230), (286, 64355), (305, 60346), (422, 43615), (610, 30173), (671, 27430), (715, 25742), (793, 23210), (1055, 17446), (1342, 13715), (1430, 12871), (1586, 11605), (2110, 8723), (2321, 7930), (2743, 6710), (3355, 5486), (3965, 4642)]