25350760

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7121}}^1$

素因数の和:7221

約数の個数: 32

約数和(自身を含む): 57688200

約数和(自身を除く): 32337440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 7121, 14242, 28484, 35605, 56968, 71210, 142420, 284840, 633769, 1267538, 2535076, 3168845, 5070152, 6337690, 12675380, 25350760]

約数ペア:

[(1, 25350760), (2, 12675380), (4, 6337690), (5, 5070152), (8, 3168845), (10, 2535076), (20, 1267538), (40, 633769), (89, 284840), (178, 142420), (356, 71210), (445, 56968), (712, 35605), (890, 28484), (1780, 14242), (3560, 7121)]