1991771710

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{455783}}^1$

素因数の和:455832

約数の個数: 32

約数和(自身を含む): 3937973760

約数和(自身を除く): 1946202050

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 190, 230, 437, 874, 2185, 4370, 455783, 911566, 2278915, 4557830, 8659877, 10483009, 17319754, 20966018, 43299385, 52415045, 86598770, 104830090, 199177171, 398354342, 995885855, 1991771710]

約数ペア:

[(1, 1991771710), (2, 995885855), (5, 398354342), (10, 199177171), (19, 104830090), (23, 86598770), (38, 52415045), (46, 43299385), (95, 20966018), (115, 17319754), (190, 10483009), (230, 8659877), (437, 4557830), (874, 2278915), (2185, 911566), (4370, 455783)]