256882416

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20663}}^1$

素因数の和:20718

約数の個数: 80

約数和(自身を含む): 778950144

約数和(自身を除く): 522067728

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 37, 42, 48, 56, 74, 84, 111, 112, 148, 168, 222, 259, 296, 336, 444, 518, 592, 777, 888, 1036, 1554, 1776, 2072, 3108, 4144, 6216, 12432, 20663, 41326, 61989, 82652, 123978, 144641, 165304, 247956, 289282, 330608, 433923, 495912, 578564, 764531, 867846, 991824, 1157128, 1529062, 1735692, 2293593, 2314256, 3058124, 3471384, 4587186, 5351717, 6116248, 6942768, 9174372, 10703434, 12232496, 16055151, 18348744, 21406868, 32110302, 36697488, 42813736, 64220604, 85627472, 128441208, 256882416]

約数ペア:

[(1, 256882416), (2, 128441208), (3, 85627472), (4, 64220604), (6, 42813736), (7, 36697488), (8, 32110302), (12, 21406868), (14, 18348744), (16, 16055151), (21, 12232496), (24, 10703434), (28, 9174372), (37, 6942768), (42, 6116248), (48, 5351717), (56, 4587186), (74, 3471384), (84, 3058124), (111, 2314256), (112, 2293593), (148, 1735692), (168, 1529062), (222, 1157128), (259, 991824), (296, 867846), (336, 764531), (444, 578564), (518, 495912), (592, 433923), (777, 330608), (888, 289282), (1036, 247956), (1554, 165304), (1776, 144641), (2072, 123978), (3108, 82652), (4144, 61989), (6216, 41326), (12432, 20663)]