64681472

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:207

約数の個数: 80

約数和(自身を含む): 139537200

約数和(自身を除く): 74855728

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 61, 64, 76, 109, 122, 128, 152, 218, 244, 256, 304, 436, 488, 512, 608, 872, 976, 1159, 1216, 1744, 1952, 2071, 2318, 2432, 3488, 3904, 4142, 4636, 4864, 6649, 6976, 7808, 8284, 9272, 9728, 13298, 13952, 15616, 16568, 18544, 26596, 27904, 31232, 33136, 37088, 53192, 55808, 66272, 74176, 106384, 126331, 132544, 148352, 212768, 252662, 265088, 296704, 425536, 505324, 530176, 593408, 851072, 1010648, 1060352, 1702144, 2021296, 3404288, 4042592, 8085184, 16170368, 32340736, 64681472]

約数ペア:

[(1, 64681472), (2, 32340736), (4, 16170368), (8, 8085184), (16, 4042592), (19, 3404288), (32, 2021296), (38, 1702144), (61, 1060352), (64, 1010648), (76, 851072), (109, 593408), (122, 530176), (128, 505324), (152, 425536), (218, 296704), (244, 265088), (256, 252662), (304, 212768), (436, 148352), (488, 132544), (512, 126331), (608, 106384), (872, 74176), (976, 66272), (1159, 55808), (1216, 53192), (1744, 37088), (1952, 33136), (2071, 31232), (2318, 27904), (2432, 26596), (3488, 18544), (3904, 16568), (4142, 15616), (4636, 13952), (4864, 13298), (6649, 9728), (6976, 9272), (7808, 8284)]