31980620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{7877}}^1$

素因数の和:7922

約数の個数: 48

約数和(自身を含む): 79410240

約数和(自身を除く): 47429620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 7877, 15754, 31508, 39385, 55139, 78770, 110278, 157540, 220556, 228433, 275695, 456866, 551390, 913732, 1102780, 1142165, 1599031, 2284330, 3198062, 4568660, 6396124, 7995155, 15990310, 31980620]

約数ペア:

[(1, 31980620), (2, 15990310), (4, 7995155), (5, 6396124), (7, 4568660), (10, 3198062), (14, 2284330), (20, 1599031), (28, 1142165), (29, 1102780), (35, 913732), (58, 551390), (70, 456866), (116, 275695), (140, 228433), (145, 220556), (203, 157540), (290, 110278), (406, 78770), (580, 55139), (812, 39385), (1015, 31508), (2030, 15754), (4060, 7877)]