81233620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{3221}}^1$

素因数の和:3340

約数の個数: 48

約数和(自身を含む): 185664528

約数和(自身を除く): 104430908

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 194, 260, 388, 485, 970, 1261, 1940, 2522, 3221, 5044, 6305, 6442, 12610, 12884, 16105, 25220, 32210, 41873, 64420, 83746, 167492, 209365, 312437, 418730, 624874, 837460, 1249748, 1562185, 3124370, 4061681, 6248740, 8123362, 16246724, 20308405, 40616810, 81233620]

約数ペア:

[(1, 81233620), (2, 40616810), (4, 20308405), (5, 16246724), (10, 8123362), (13, 6248740), (20, 4061681), (26, 3124370), (52, 1562185), (65, 1249748), (97, 837460), (130, 624874), (194, 418730), (260, 312437), (388, 209365), (485, 167492), (970, 83746), (1261, 64420), (1940, 41873), (2522, 32210), (3221, 25220), (5044, 16105), (6305, 12884), (6442, 12610)]