38388740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{409}}^1$

素因数の和:469

約数の個数: 72

約数和(自身を含む): 91851480

約数和(自身を除く): 53462740

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 361, 380, 409, 494, 722, 818, 988, 1235, 1444, 1636, 1805, 2045, 2470, 3610, 4090, 4693, 4940, 5317, 7220, 7771, 8180, 9386, 10634, 15542, 18772, 21268, 23465, 26585, 31084, 38855, 46930, 53170, 77710, 93860, 101023, 106340, 147649, 155420, 202046, 295298, 404092, 505115, 590596, 738245, 1010230, 1476490, 1919437, 2020460, 2952980, 3838874, 7677748, 9597185, 19194370, 38388740]

約数ペア:

[(1, 38388740), (2, 19194370), (4, 9597185), (5, 7677748), (10, 3838874), (13, 2952980), (19, 2020460), (20, 1919437), (26, 1476490), (38, 1010230), (52, 738245), (65, 590596), (76, 505115), (95, 404092), (130, 295298), (190, 202046), (247, 155420), (260, 147649), (361, 106340), (380, 101023), (409, 93860), (494, 77710), (722, 53170), (818, 46930), (988, 38855), (1235, 31084), (1444, 26585), (1636, 23465), (1805, 21268), (2045, 18772), (2470, 15542), (3610, 10634), (4090, 9386), (4693, 8180), (4940, 7771), (5317, 7220)]