81667456

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2887}}^1$

素因数の和:2931

約数の個数: 64

約数和(自身を含む): 185582880

約数和(自身を除く): 103915424

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 128, 136, 208, 221, 272, 416, 442, 544, 832, 884, 1088, 1664, 1768, 2176, 2887, 3536, 5774, 7072, 11548, 14144, 23096, 28288, 37531, 46192, 49079, 75062, 92384, 98158, 150124, 184768, 196316, 300248, 369536, 392632, 600496, 638027, 785264, 1200992, 1276054, 1570528, 2401984, 2552108, 3141056, 4803968, 5104216, 6282112, 10208432, 20416864, 40833728, 81667456]

約数ペア:

[(1, 81667456), (2, 40833728), (4, 20416864), (8, 10208432), (13, 6282112), (16, 5104216), (17, 4803968), (26, 3141056), (32, 2552108), (34, 2401984), (52, 1570528), (64, 1276054), (68, 1200992), (104, 785264), (128, 638027), (136, 600496), (208, 392632), (221, 369536), (272, 300248), (416, 196316), (442, 184768), (544, 150124), (832, 98158), (884, 92384), (1088, 75062), (1664, 49079), (1768, 46192), (2176, 37531), (2887, 28288), (3536, 23096), (5774, 14144), (7072, 11548)]