13118240

素因数分解:

$2^5\times 5^1\times {\mathrm{163}}^1\times {\mathrm{503}}^1$

素因数の和:681

約数の個数: 48

約数和(自身を含む): 31243968

約数和(自身を除く): 18125728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 163, 326, 503, 652, 815, 1006, 1304, 1630, 2012, 2515, 2608, 3260, 4024, 5030, 5216, 6520, 8048, 10060, 13040, 16096, 20120, 26080, 40240, 80480, 81989, 163978, 327956, 409945, 655912, 819890, 1311824, 1639780, 2623648, 3279560, 6559120, 13118240]

約数ペア:

[(1, 13118240), (2, 6559120), (4, 3279560), (5, 2623648), (8, 1639780), (10, 1311824), (16, 819890), (20, 655912), (32, 409945), (40, 327956), (80, 163978), (160, 81989), (163, 80480), (326, 40240), (503, 26080), (652, 20120), (815, 16096), (1006, 13040), (1304, 10060), (1630, 8048), (2012, 6520), (2515, 5216), (2608, 5030), (3260, 4024)]