25628840

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 59780160

約数和(自身を除く): 34151320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 73, 131, 134, 146, 262, 268, 292, 335, 365, 524, 536, 584, 655, 670, 730, 1048, 1310, 1340, 1460, 2620, 2680, 2920, 4891, 5240, 8777, 9563, 9782, 17554, 19126, 19564, 24455, 35108, 38252, 39128, 43885, 47815, 48910, 70216, 76504, 87770, 95630, 97820, 175540, 191260, 195640, 351080, 382520, 640721, 1281442, 2562884, 3203605, 5125768, 6407210, 12814420, 25628840]

約数ペア:

[(1, 25628840), (2, 12814420), (4, 6407210), (5, 5125768), (8, 3203605), (10, 2562884), (20, 1281442), (40, 640721), (67, 382520), (73, 351080), (131, 195640), (134, 191260), (146, 175540), (262, 97820), (268, 95630), (292, 87770), (335, 76504), (365, 70216), (524, 48910), (536, 47815), (584, 43885), (655, 39128), (670, 38252), (730, 35108), (1048, 24455), (1310, 19564), (1340, 19126), (1460, 17554), (2620, 9782), (2680, 9563), (2920, 8777), (4891, 5240)]