27772840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1$

素因数の和:362

約数の個数: 64

約数和(自身を含む): 65165760

約数和(自身を除く): 37392920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 67, 86, 134, 172, 215, 241, 268, 335, 344, 430, 482, 536, 670, 860, 964, 1205, 1340, 1720, 1928, 2410, 2680, 2881, 4820, 5762, 9640, 10363, 11524, 14405, 16147, 20726, 23048, 28810, 32294, 41452, 51815, 57620, 64588, 80735, 82904, 103630, 115240, 129176, 161470, 207260, 322940, 414520, 645880, 694321, 1388642, 2777284, 3471605, 5554568, 6943210, 13886420, 27772840]

約数ペア:

[(1, 27772840), (2, 13886420), (4, 6943210), (5, 5554568), (8, 3471605), (10, 2777284), (20, 1388642), (40, 694321), (43, 645880), (67, 414520), (86, 322940), (134, 207260), (172, 161470), (215, 129176), (241, 115240), (268, 103630), (335, 82904), (344, 80735), (430, 64588), (482, 57620), (536, 51815), (670, 41452), (860, 32294), (964, 28810), (1205, 23048), (1340, 20726), (1720, 16147), (1928, 14405), (2410, 11524), (2680, 10363), (2881, 9640), (4820, 5762)]