515440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1$

素因数の和:409

約数の個数: 40

約数和(自身を含む): 1272240

約数和(自身を除く): 756800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 379, 680, 758, 1360, 1516, 1895, 3032, 3790, 6064, 6443, 7580, 12886, 15160, 25772, 30320, 32215, 51544, 64430, 103088, 128860, 257720, 515440]

約数ペア:

[(1, 515440), (2, 257720), (4, 128860), (5, 103088), (8, 64430), (10, 51544), (16, 32215), (17, 30320), (20, 25772), (34, 15160), (40, 12886), (68, 7580), (80, 6443), (85, 6064), (136, 3790), (170, 3032), (272, 1895), (340, 1516), (379, 1360), (680, 758)]