1560085840

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1\times {\mathrm{787}}^1$

素因数の和:1220

約数の個数: 80

約数和(自身を含む): 3693513600

約数和(自身を除く): 2133427760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 349, 355, 568, 698, 710, 787, 1136, 1396, 1420, 1574, 1745, 2792, 2840, 3148, 3490, 3935, 5584, 5680, 6296, 6980, 7870, 12592, 13960, 15740, 24779, 27920, 31480, 49558, 55877, 62960, 99116, 111754, 123895, 198232, 223508, 247790, 274663, 279385, 396464, 447016, 495580, 549326, 558770, 894032, 991160, 1098652, 1117540, 1373315, 1982320, 2197304, 2235080, 2746630, 4394608, 4470160, 5493260, 10986520, 19501073, 21973040, 39002146, 78004292, 97505365, 156008584, 195010730, 312017168, 390021460, 780042920, 1560085840]

約数ペア:

[(1, 1560085840), (2, 780042920), (4, 390021460), (5, 312017168), (8, 195010730), (10, 156008584), (16, 97505365), (20, 78004292), (40, 39002146), (71, 21973040), (80, 19501073), (142, 10986520), (284, 5493260), (349, 4470160), (355, 4394608), (568, 2746630), (698, 2235080), (710, 2197304), (787, 1982320), (1136, 1373315), (1396, 1117540), (1420, 1098652), (1574, 991160), (1745, 894032), (2792, 558770), (2840, 549326), (3148, 495580), (3490, 447016), (3935, 396464), (5584, 279385), (5680, 274663), (6296, 247790), (6980, 223508), (7870, 198232), (12592, 123895), (13960, 111754), (15740, 99116), (24779, 62960), (27920, 55877), (31480, 49558)]