28176980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:189

約数の個数: 96

約数和(自身を含む): 68372640

約数和(自身を除く): 40195660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 37, 52, 58, 65, 74, 101, 116, 130, 145, 148, 185, 202, 260, 290, 370, 377, 404, 481, 505, 580, 740, 754, 962, 1010, 1073, 1313, 1508, 1885, 1924, 2020, 2146, 2405, 2626, 2929, 3737, 3770, 4292, 4810, 5252, 5365, 5858, 6565, 7474, 7540, 9620, 10730, 11716, 13130, 13949, 14645, 14948, 18685, 21460, 26260, 27898, 29290, 37370, 38077, 48581, 55796, 58580, 69745, 74740, 76154, 97162, 108373, 139490, 152308, 190385, 194324, 216746, 242905, 278980, 380770, 433492, 485810, 541865, 761540, 971620, 1083730, 1408849, 2167460, 2817698, 5635396, 7044245, 14088490, 28176980]

約数ペア:

[(1, 28176980), (2, 14088490), (4, 7044245), (5, 5635396), (10, 2817698), (13, 2167460), (20, 1408849), (26, 1083730), (29, 971620), (37, 761540), (52, 541865), (58, 485810), (65, 433492), (74, 380770), (101, 278980), (116, 242905), (130, 216746), (145, 194324), (148, 190385), (185, 152308), (202, 139490), (260, 108373), (290, 97162), (370, 76154), (377, 74740), (404, 69745), (481, 58580), (505, 55796), (580, 48581), (740, 38077), (754, 37370), (962, 29290), (1010, 27898), (1073, 26260), (1313, 21460), (1508, 18685), (1885, 14948), (1924, 14645), (2020, 13949), (2146, 13130), (2405, 11716), (2626, 10730), (2929, 9620), (3737, 7540), (3770, 7474), (4292, 6565), (4810, 5858), (5252, 5365)]