1647280

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{349}}^1$

素因数の和:421

約数の個数: 40

約数和(自身を含む): 3906000

約数和(自身を除く): 2258720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 349, 472, 590, 698, 944, 1180, 1396, 1745, 2360, 2792, 3490, 4720, 5584, 6980, 13960, 20591, 27920, 41182, 82364, 102955, 164728, 205910, 329456, 411820, 823640, 1647280]

約数ペア:

[(1, 1647280), (2, 823640), (4, 411820), (5, 329456), (8, 205910), (10, 164728), (16, 102955), (20, 82364), (40, 41182), (59, 27920), (80, 20591), (118, 13960), (236, 6980), (295, 5584), (349, 4720), (472, 3490), (590, 2792), (698, 2360), (944, 1745), (1180, 1396)]