1640590432

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127217}}^1$

素因数の和:127271

約数の個数: 48

約数和(自身を含む): 3590600832

約数和(自身を除く): 1950010400

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 124, 208, 248, 403, 416, 496, 806, 992, 1612, 3224, 6448, 12896, 127217, 254434, 508868, 1017736, 1653821, 2035472, 3307642, 3943727, 4070944, 6615284, 7887454, 13230568, 15774908, 26461136, 31549816, 51268451, 52922272, 63099632, 102536902, 126199264, 205073804, 410147608, 820295216, 1640590432]

約数ペア:

[(1, 1640590432), (2, 820295216), (4, 410147608), (8, 205073804), (13, 126199264), (16, 102536902), (26, 63099632), (31, 52922272), (32, 51268451), (52, 31549816), (62, 26461136), (104, 15774908), (124, 13230568), (208, 7887454), (248, 6615284), (403, 4070944), (416, 3943727), (496, 3307642), (806, 2035472), (992, 1653821), (1612, 1017736), (3224, 508868), (6448, 254434), (12896, 127217)]