31212500

素因数分解:

$2^2\times 5^5\times {\mathrm{11}}^1\times {\mathrm{227}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 74807712

約数和(自身を除く): 43595212

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 227, 250, 275, 454, 500, 550, 625, 908, 1100, 1135, 1250, 1375, 2270, 2497, 2500, 2750, 3125, 4540, 4994, 5500, 5675, 6250, 6875, 9988, 11350, 12485, 12500, 13750, 22700, 24970, 27500, 28375, 34375, 49940, 56750, 62425, 68750, 113500, 124850, 137500, 141875, 249700, 283750, 312125, 567500, 624250, 709375, 1248500, 1418750, 1560625, 2837500, 3121250, 6242500, 7803125, 15606250, 31212500]

約数ペア:

[(1, 31212500), (2, 15606250), (4, 7803125), (5, 6242500), (10, 3121250), (11, 2837500), (20, 1560625), (22, 1418750), (25, 1248500), (44, 709375), (50, 624250), (55, 567500), (100, 312125), (110, 283750), (125, 249700), (220, 141875), (227, 137500), (250, 124850), (275, 113500), (454, 68750), (500, 62425), (550, 56750), (625, 49940), (908, 34375), (1100, 28375), (1135, 27500), (1250, 24970), (1375, 22700), (2270, 13750), (2497, 12500), (2500, 12485), (2750, 11350), (3125, 9988), (4540, 6875), (4994, 6250), (5500, 5675)]