12809420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2593}}^1$

素因数の和:2634

約数の個数: 48

約数和(自身を含む): 30505440

約数和(自身を除く): 17696020

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 2593, 4940, 5186, 10372, 12965, 25930, 33709, 49267, 51860, 67418, 98534, 134836, 168545, 197068, 246335, 337090, 492670, 640471, 674180, 985340, 1280942, 2561884, 3202355, 6404710, 12809420]

約数ペア:

[(1, 12809420), (2, 6404710), (4, 3202355), (5, 2561884), (10, 1280942), (13, 985340), (19, 674180), (20, 640471), (26, 492670), (38, 337090), (52, 246335), (65, 197068), (76, 168545), (95, 134836), (130, 98534), (190, 67418), (247, 51860), (260, 49267), (380, 33709), (494, 25930), (988, 12965), (1235, 10372), (2470, 5186), (2593, 4940)]