13207220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{643}}^1$

素因数の和:744

約数の個数: 48

約数和(自身を含む): 30293760

約数和(自身を除く): 17086540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 643, 790, 1027, 1286, 1580, 2054, 2572, 3215, 4108, 5135, 6430, 8359, 10270, 12860, 16718, 20540, 33436, 41795, 50797, 83590, 101594, 167180, 203188, 253985, 507970, 660361, 1015940, 1320722, 2641444, 3301805, 6603610, 13207220]

約数ペア:

[(1, 13207220), (2, 6603610), (4, 3301805), (5, 2641444), (10, 1320722), (13, 1015940), (20, 660361), (26, 507970), (52, 253985), (65, 203188), (79, 167180), (130, 101594), (158, 83590), (260, 50797), (316, 41795), (395, 33436), (643, 20540), (790, 16718), (1027, 12860), (1286, 10270), (1580, 8359), (2054, 6430), (2572, 5135), (3215, 4108)]