638311232

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{271}}^1$

素因数の和:464

約数の個数: 112

約数和(自身を含む): 1450848000

約数和(自身を除く): 812536768

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 149, 152, 208, 247, 271, 298, 304, 416, 494, 542, 596, 608, 832, 988, 1084, 1192, 1216, 1937, 1976, 2168, 2384, 2831, 3523, 3874, 3952, 4336, 4768, 5149, 5662, 7046, 7748, 7904, 8672, 9536, 10298, 11324, 14092, 15496, 15808, 17344, 20596, 22648, 28184, 30992, 36803, 40379, 41192, 45296, 56368, 61984, 66937, 73606, 80758, 82384, 90592, 112736, 123968, 133874, 147212, 161516, 164768, 181184, 225472, 267748, 294424, 323032, 329536, 524927, 535496, 588848, 646064, 767201, 1049854, 1070992, 1177696, 1292128, 1534402, 2099708, 2141984, 2355392, 2584256, 3068804, 4199416, 4283968, 6137608, 8398832, 9973613, 12275216, 16797664, 19947226, 24550432, 33595328, 39894452, 49100864, 79788904, 159577808, 319155616, 638311232]

約数ペア:

[(1, 638311232), (2, 319155616), (4, 159577808), (8, 79788904), (13, 49100864), (16, 39894452), (19, 33595328), (26, 24550432), (32, 19947226), (38, 16797664), (52, 12275216), (64, 9973613), (76, 8398832), (104, 6137608), (149, 4283968), (152, 4199416), (208, 3068804), (247, 2584256), (271, 2355392), (298, 2141984), (304, 2099708), (416, 1534402), (494, 1292128), (542, 1177696), (596, 1070992), (608, 1049854), (832, 767201), (988, 646064), (1084, 588848), (1192, 535496), (1216, 524927), (1937, 329536), (1976, 323032), (2168, 294424), (2384, 267748), (2831, 225472), (3523, 181184), (3874, 164768), (3952, 161516), (4336, 147212), (4768, 133874), (5149, 123968), (5662, 112736), (7046, 90592), (7748, 82384), (7904, 80758), (8672, 73606), (9536, 66937), (10298, 61984), (11324, 56368), (14092, 45296), (15496, 41192), (15808, 40379), (17344, 36803), (20596, 30992), (22648, 28184)]