20976250

素因数分解:

$2^1\times 5^4\times {\mathrm{97}}^1\times {\mathrm{173}}^1$

素因数の和:292

約数の個数: 40

約数和(自身を含む): 39952836

約数和(自身を除く): 18976586

約数列:

[1, 2, 5, 10, 25, 50, 97, 125, 173, 194, 250, 346, 485, 625, 865, 970, 1250, 1730, 2425, 4325, 4850, 8650, 12125, 16781, 21625, 24250, 33562, 43250, 60625, 83905, 108125, 121250, 167810, 216250, 419525, 839050, 2097625, 4195250, 10488125, 20976250]

約数ペア:

[(1, 20976250), (2, 10488125), (5, 4195250), (10, 2097625), (25, 839050), (50, 419525), (97, 216250), (125, 167810), (173, 121250), (194, 108125), (250, 83905), (346, 60625), (485, 43250), (625, 33562), (865, 24250), (970, 21625), (1250, 16781), (1730, 12125), (2425, 8650), (4325, 4850)]