88919900

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:303

約数の個数: 72

約数和(自身を含む): 199049760

約数和(自身を除く): 110129860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 97, 100, 103, 178, 194, 206, 356, 388, 412, 445, 485, 515, 890, 970, 1030, 1780, 1940, 2060, 2225, 2425, 2575, 4450, 4850, 5150, 8633, 8900, 9167, 9700, 9991, 10300, 17266, 18334, 19982, 34532, 36668, 39964, 43165, 45835, 49955, 86330, 91670, 99910, 172660, 183340, 199820, 215825, 229175, 249775, 431650, 458350, 499550, 863300, 889199, 916700, 999100, 1778398, 3556796, 4445995, 8891990, 17783980, 22229975, 44459950, 88919900]

約数ペア:

[(1, 88919900), (2, 44459950), (4, 22229975), (5, 17783980), (10, 8891990), (20, 4445995), (25, 3556796), (50, 1778398), (89, 999100), (97, 916700), (100, 889199), (103, 863300), (178, 499550), (194, 458350), (206, 431650), (356, 249775), (388, 229175), (412, 215825), (445, 199820), (485, 183340), (515, 172660), (890, 99910), (970, 91670), (1030, 86330), (1780, 49955), (1940, 45835), (2060, 43165), (2225, 39964), (2425, 36668), (2575, 34532), (4450, 19982), (4850, 18334), (5150, 17266), (8633, 10300), (8900, 9991), (9167, 9700)]