1330521620

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{491}}^1\times {\mathrm{863}}^1$

素因数の和:1520

約数の個数: 48

約数和(自身を含む): 2820883968

約数和(自身を除く): 1490362348

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 491, 628, 785, 863, 982, 1570, 1726, 1964, 2455, 3140, 3452, 4315, 4910, 8630, 9820, 17260, 77087, 135491, 154174, 270982, 308348, 385435, 423733, 541964, 677455, 770870, 847466, 1354910, 1541740, 1694932, 2118665, 2709820, 4237330, 8474660, 66526081, 133052162, 266104324, 332630405, 665260810, 1330521620]

約数ペア:

[(1, 1330521620), (2, 665260810), (4, 332630405), (5, 266104324), (10, 133052162), (20, 66526081), (157, 8474660), (314, 4237330), (491, 2709820), (628, 2118665), (785, 1694932), (863, 1541740), (982, 1354910), (1570, 847466), (1726, 770870), (1964, 677455), (2455, 541964), (3140, 423733), (3452, 385435), (4315, 308348), (4910, 270982), (8630, 154174), (9820, 135491), (17260, 77087)]