20706532

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:161

約数の個数: 96

約数和(自身を含む): 49029120

約数和(自身を除く): 28322588

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 37, 44, 46, 74, 77, 79, 92, 148, 154, 158, 161, 253, 259, 308, 316, 322, 407, 506, 518, 553, 644, 814, 851, 869, 1012, 1036, 1106, 1628, 1702, 1738, 1771, 1817, 2212, 2849, 2923, 3404, 3476, 3542, 3634, 5698, 5846, 5957, 6083, 7084, 7268, 9361, 11396, 11692, 11914, 12166, 12719, 18722, 19987, 20461, 23828, 24332, 25438, 32153, 37444, 39974, 40922, 50876, 64306, 65527, 67229, 79948, 81844, 128612, 131054, 134458, 139909, 225071, 262108, 268916, 279818, 450142, 470603, 559636, 739519, 900284, 941206, 1479038, 1882412, 2958076, 5176633, 10353266, 20706532]

約数ペア:

[(1, 20706532), (2, 10353266), (4, 5176633), (7, 2958076), (11, 1882412), (14, 1479038), (22, 941206), (23, 900284), (28, 739519), (37, 559636), (44, 470603), (46, 450142), (74, 279818), (77, 268916), (79, 262108), (92, 225071), (148, 139909), (154, 134458), (158, 131054), (161, 128612), (253, 81844), (259, 79948), (308, 67229), (316, 65527), (322, 64306), (407, 50876), (506, 40922), (518, 39974), (553, 37444), (644, 32153), (814, 25438), (851, 24332), (869, 23828), (1012, 20461), (1036, 19987), (1106, 18722), (1628, 12719), (1702, 12166), (1738, 11914), (1771, 11692), (1817, 11396), (2212, 9361), (2849, 7268), (2923, 7084), (3404, 6083), (3476, 5957), (3542, 5846), (3634, 5698)]