123156375

素因数分解:

$3^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 217451520

約数和(自身を除く): 94295145

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 109, 115, 125, 131, 327, 345, 375, 393, 545, 575, 655, 1635, 1725, 1965, 2507, 2725, 2875, 3013, 3275, 7521, 8175, 8625, 9039, 9825, 12535, 13625, 14279, 15065, 16375, 37605, 40875, 42837, 45195, 49125, 62675, 71395, 75325, 188025, 214185, 225975, 313375, 328417, 356975, 376625, 940125, 985251, 1070925, 1129875, 1642085, 1784875, 4926255, 5354625, 8210425, 24631275, 41052125, 123156375]

約数ペア:

[(1, 123156375), (3, 41052125), (5, 24631275), (15, 8210425), (23, 5354625), (25, 4926255), (69, 1784875), (75, 1642085), (109, 1129875), (115, 1070925), (125, 985251), (131, 940125), (327, 376625), (345, 356975), (375, 328417), (393, 313375), (545, 225975), (575, 214185), (655, 188025), (1635, 75325), (1725, 71395), (1965, 62675), (2507, 49125), (2725, 45195), (2875, 42837), (3013, 40875), (3275, 37605), (7521, 16375), (8175, 15065), (8625, 14279), (9039, 13625), (9825, 12535)]