81235120

素因数分解:

$2^4\times 5^1\times {\mathrm{983}}^1\times {\mathrm{1033}}^1$

素因数の和:2029

約数の個数: 40

約数和(自身を含む): 189246816

約数和(自身を除く): 108011696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 983, 1033, 1966, 2066, 3932, 4132, 4915, 5165, 7864, 8264, 9830, 10330, 15728, 16528, 19660, 20660, 39320, 41320, 78640, 82640, 1015439, 2030878, 4061756, 5077195, 8123512, 10154390, 16247024, 20308780, 40617560, 81235120]

約数ペア:

[(1, 81235120), (2, 40617560), (4, 20308780), (5, 16247024), (8, 10154390), (10, 8123512), (16, 5077195), (20, 4061756), (40, 2030878), (80, 1015439), (983, 82640), (1033, 78640), (1966, 41320), (2066, 39320), (3932, 20660), (4132, 19660), (4915, 16528), (5165, 15728), (7864, 10330), (8264, 9830)]