81220750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{373}}^1$

素因数の和:470

約数の個数: 64

約数和(自身を含む): 166630464

約数和(自身を除く): 85409714

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 67, 125, 130, 134, 250, 325, 335, 373, 650, 670, 746, 871, 1625, 1675, 1742, 1865, 3250, 3350, 3730, 4355, 4849, 8375, 8710, 9325, 9698, 16750, 18650, 21775, 24245, 24991, 43550, 46625, 48490, 49982, 93250, 108875, 121225, 124955, 217750, 242450, 249910, 324883, 606125, 624775, 649766, 1212250, 1249550, 1624415, 3123875, 3248830, 6247750, 8122075, 16244150, 40610375, 81220750]

約数ペア:

[(1, 81220750), (2, 40610375), (5, 16244150), (10, 8122075), (13, 6247750), (25, 3248830), (26, 3123875), (50, 1624415), (65, 1249550), (67, 1212250), (125, 649766), (130, 624775), (134, 606125), (250, 324883), (325, 249910), (335, 242450), (373, 217750), (650, 124955), (670, 121225), (746, 108875), (871, 93250), (1625, 49982), (1675, 48490), (1742, 46625), (1865, 43550), (3250, 24991), (3350, 24245), (3730, 21775), (4355, 18650), (4849, 16750), (8375, 9698), (8710, 9325)]