25145968

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{457}}^1$

素因数の和:665

約数の個数: 40

約数和(自身を含む): 51680720

約数和(自身を除く): 26534752

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 181, 304, 362, 457, 724, 914, 1448, 1828, 2896, 3439, 3656, 6878, 7312, 8683, 13756, 17366, 27512, 34732, 55024, 69464, 82717, 138928, 165434, 330868, 661736, 1323472, 1571623, 3143246, 6286492, 12572984, 25145968]

約数ペア:

[(1, 25145968), (2, 12572984), (4, 6286492), (8, 3143246), (16, 1571623), (19, 1323472), (38, 661736), (76, 330868), (152, 165434), (181, 138928), (304, 82717), (362, 69464), (457, 55024), (724, 34732), (914, 27512), (1448, 17366), (1828, 13756), (2896, 8683), (3439, 7312), (3656, 6878)]