81352490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{4157}}^1$

素因数の和:4286

約数の個数: 32

約数和(自身を含む): 155675520

約数和(自身を除く): 74323030

約数列:

[1, 2, 5, 10, 19, 38, 95, 103, 190, 206, 515, 1030, 1957, 3914, 4157, 8314, 9785, 19570, 20785, 41570, 78983, 157966, 394915, 428171, 789830, 856342, 2140855, 4281710, 8135249, 16270498, 40676245, 81352490]

約数ペア:

[(1, 81352490), (2, 40676245), (5, 16270498), (10, 8135249), (19, 4281710), (38, 2140855), (95, 856342), (103, 789830), (190, 428171), (206, 394915), (515, 157966), (1030, 78983), (1957, 41570), (3914, 20785), (4157, 19570), (8314, 9785)]