42039820

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 90649440

約数和(自身を除く): 48609620

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 137, 229, 268, 274, 335, 458, 548, 670, 685, 916, 1145, 1340, 1370, 2290, 2740, 4580, 9179, 15343, 18358, 30686, 31373, 36716, 45895, 61372, 62746, 76715, 91790, 125492, 153430, 156865, 183580, 306860, 313730, 627460, 2101991, 4203982, 8407964, 10509955, 21019910, 42039820]

約数ペア:

[(1, 42039820), (2, 21019910), (4, 10509955), (5, 8407964), (10, 4203982), (20, 2101991), (67, 627460), (134, 313730), (137, 306860), (229, 183580), (268, 156865), (274, 153430), (335, 125492), (458, 91790), (548, 76715), (670, 62746), (685, 61372), (916, 45895), (1145, 36716), (1340, 31373), (1370, 30686), (2290, 18358), (2740, 15343), (4580, 9179)]