18763810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:187

約数の個数: 64

約数和(自身を含む): 38610432

約数和(自身を除く): 19846622

約数列:

[1, 2, 5, 10, 13, 26, 37, 47, 65, 74, 83, 94, 130, 166, 185, 235, 370, 415, 470, 481, 611, 830, 962, 1079, 1222, 1739, 2158, 2405, 3055, 3071, 3478, 3901, 4810, 5395, 6110, 6142, 7802, 8695, 10790, 15355, 17390, 19505, 22607, 30710, 39010, 39923, 45214, 50713, 79846, 101426, 113035, 144337, 199615, 226070, 253565, 288674, 399230, 507130, 721685, 1443370, 1876381, 3752762, 9381905, 18763810]

約数ペア:

[(1, 18763810), (2, 9381905), (5, 3752762), (10, 1876381), (13, 1443370), (26, 721685), (37, 507130), (47, 399230), (65, 288674), (74, 253565), (83, 226070), (94, 199615), (130, 144337), (166, 113035), (185, 101426), (235, 79846), (370, 50713), (415, 45214), (470, 39923), (481, 39010), (611, 30710), (830, 22607), (962, 19505), (1079, 17390), (1222, 15355), (1739, 10790), (2158, 8695), (2405, 7802), (3055, 6142), (3071, 6110), (3478, 5395), (3901, 4810)]