82501420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{1091}}^1$

素因数の和:1318

約数の個数: 48

約数和(自身を含む): 183456000

約数和(自身を除く): 100954580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 199, 380, 398, 796, 995, 1091, 1990, 2182, 3781, 3980, 4364, 5455, 7562, 10910, 15124, 18905, 20729, 21820, 37810, 41458, 75620, 82916, 103645, 207290, 217109, 414580, 434218, 868436, 1085545, 2171090, 4125071, 4342180, 8250142, 16500284, 20625355, 41250710, 82501420]

約数ペア:

[(1, 82501420), (2, 41250710), (4, 20625355), (5, 16500284), (10, 8250142), (19, 4342180), (20, 4125071), (38, 2171090), (76, 1085545), (95, 868436), (190, 434218), (199, 414580), (380, 217109), (398, 207290), (796, 103645), (995, 82916), (1091, 75620), (1990, 41458), (2182, 37810), (3781, 21820), (3980, 20729), (4364, 18905), (5455, 15124), (7562, 10910)]