19849856

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 43411200

約数和(自身を除く): 23561344

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 79, 104, 128, 151, 158, 208, 302, 316, 416, 604, 632, 832, 1027, 1208, 1264, 1664, 1963, 2054, 2416, 2528, 3926, 4108, 4832, 5056, 7852, 8216, 9664, 10112, 11929, 15704, 16432, 19328, 23858, 31408, 32864, 47716, 62816, 65728, 95432, 125632, 131456, 155077, 190864, 251264, 310154, 381728, 620308, 763456, 1240616, 1526912, 2481232, 4962464, 9924928, 19849856]

約数ペア:

[(1, 19849856), (2, 9924928), (4, 4962464), (8, 2481232), (13, 1526912), (16, 1240616), (26, 763456), (32, 620308), (52, 381728), (64, 310154), (79, 251264), (104, 190864), (128, 155077), (151, 131456), (158, 125632), (208, 95432), (302, 65728), (316, 62816), (416, 47716), (604, 32864), (632, 31408), (832, 23858), (1027, 19328), (1208, 16432), (1264, 15704), (1664, 11929), (1963, 10112), (2054, 9664), (2416, 8216), (2528, 7852), (3926, 5056), (4108, 4832)]