81689384

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{757}}^1$

素因数の和:858

約数の個数: 64

約数和(自身を含む): 183375360

約数和(自身を除く): 101685976

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 47, 56, 82, 94, 164, 188, 287, 328, 329, 376, 574, 658, 757, 1148, 1316, 1514, 1927, 2296, 2632, 3028, 3854, 5299, 6056, 7708, 10598, 13489, 15416, 21196, 26978, 31037, 35579, 42392, 53956, 62074, 71158, 107912, 124148, 142316, 217259, 248296, 249053, 284632, 434518, 498106, 869036, 996212, 1458739, 1738072, 1992424, 2917478, 5834956, 10211173, 11669912, 20422346, 40844692, 81689384]

約数ペア:

[(1, 81689384), (2, 40844692), (4, 20422346), (7, 11669912), (8, 10211173), (14, 5834956), (28, 2917478), (41, 1992424), (47, 1738072), (56, 1458739), (82, 996212), (94, 869036), (164, 498106), (188, 434518), (287, 284632), (328, 249053), (329, 248296), (376, 217259), (574, 142316), (658, 124148), (757, 107912), (1148, 71158), (1316, 62074), (1514, 53956), (1927, 42392), (2296, 35579), (2632, 31037), (3028, 26978), (3854, 21196), (5299, 15416), (6056, 13489), (7708, 10598)]