82780540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:203

約数の個数: 72

約数和(自身を含む): 185174640

約数和(自身を除く): 102394100

約数列:

[1, 2, 4, 5, 10, 20, 31, 59, 62, 73, 118, 124, 146, 155, 236, 292, 295, 310, 365, 590, 620, 730, 961, 1180, 1460, 1829, 1922, 2263, 3658, 3844, 4307, 4526, 4805, 7316, 8614, 9052, 9145, 9610, 11315, 17228, 18290, 19220, 21535, 22630, 36580, 43070, 45260, 56699, 70153, 86140, 113398, 133517, 140306, 226796, 267034, 280612, 283495, 350765, 534068, 566990, 667585, 701530, 1133980, 1335170, 1403060, 2670340, 4139027, 8278054, 16556108, 20695135, 41390270, 82780540]

約数ペア:

[(1, 82780540), (2, 41390270), (4, 20695135), (5, 16556108), (10, 8278054), (20, 4139027), (31, 2670340), (59, 1403060), (62, 1335170), (73, 1133980), (118, 701530), (124, 667585), (146, 566990), (155, 534068), (236, 350765), (292, 283495), (295, 280612), (310, 267034), (365, 226796), (590, 140306), (620, 133517), (730, 113398), (961, 86140), (1180, 70153), (1460, 56699), (1829, 45260), (1922, 43070), (2263, 36580), (3658, 22630), (3844, 21535), (4307, 19220), (4526, 18290), (4805, 17228), (7316, 11315), (8614, 9610), (9052, 9145)]