25041040

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3517}}^1$

素因数の和:3619

約数の個数: 40

約数和(自身を含む): 58891320

約数和(自身を除く): 33850280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3517, 3560, 7034, 7120, 14068, 17585, 28136, 35170, 56272, 70340, 140680, 281360, 313013, 626026, 1252052, 1565065, 2504104, 3130130, 5008208, 6260260, 12520520, 25041040]

約数ペア:

[(1, 25041040), (2, 12520520), (4, 6260260), (5, 5008208), (8, 3130130), (10, 2504104), (16, 1565065), (20, 1252052), (40, 626026), (80, 313013), (89, 281360), (178, 140680), (356, 70340), (445, 56272), (712, 35170), (890, 28136), (1424, 17585), (1780, 14068), (3517, 7120), (3560, 7034)]