25480720

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{739}}^1$

素因数の和:1183

約数の個数: 40

約数和(自身を含む): 59460480

約数和(自身を除く): 33979760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 739, 862, 1478, 1724, 2155, 2956, 3448, 3695, 4310, 5912, 6896, 7390, 8620, 11824, 14780, 17240, 29560, 34480, 59120, 318509, 637018, 1274036, 1592545, 2548072, 3185090, 5096144, 6370180, 12740360, 25480720]

約数ペア:

[(1, 25480720), (2, 12740360), (4, 6370180), (5, 5096144), (8, 3185090), (10, 2548072), (16, 1592545), (20, 1274036), (40, 637018), (80, 318509), (431, 59120), (739, 34480), (862, 29560), (1478, 17240), (1724, 14780), (2155, 11824), (2956, 8620), (3448, 7390), (3695, 6896), (4310, 5912)]