90118340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{1279}}^1$

素因数の和:1572

約数の個数: 48

約数和(自身を含む): 204718080

約数和(自身を除く): 114599740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 271, 542, 1084, 1279, 1355, 2558, 2710, 3523, 5116, 5420, 6395, 7046, 12790, 14092, 16627, 17615, 25580, 33254, 35230, 66508, 70460, 83135, 166270, 332540, 346609, 693218, 1386436, 1733045, 3466090, 4505917, 6932180, 9011834, 18023668, 22529585, 45059170, 90118340]

約数ペア:

[(1, 90118340), (2, 45059170), (4, 22529585), (5, 18023668), (10, 9011834), (13, 6932180), (20, 4505917), (26, 3466090), (52, 1733045), (65, 1386436), (130, 693218), (260, 346609), (271, 332540), (542, 166270), (1084, 83135), (1279, 70460), (1355, 66508), (2558, 35230), (2710, 33254), (3523, 25580), (5116, 17615), (5420, 16627), (6395, 14092), (7046, 12790)]