80728125

素因数分解:

$3^1\times 5^5\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 137491200

約数和(自身を除く): 56763075

約数列:

[1, 3, 5, 15, 25, 75, 79, 109, 125, 237, 327, 375, 395, 545, 625, 1185, 1635, 1875, 1975, 2725, 3125, 5925, 8175, 8611, 9375, 9875, 13625, 25833, 29625, 40875, 43055, 49375, 68125, 129165, 148125, 204375, 215275, 246875, 340625, 645825, 740625, 1021875, 1076375, 3229125, 5381875, 16145625, 26909375, 80728125]

約数ペア:

[(1, 80728125), (3, 26909375), (5, 16145625), (15, 5381875), (25, 3229125), (75, 1076375), (79, 1021875), (109, 740625), (125, 645825), (237, 340625), (327, 246875), (375, 215275), (395, 204375), (545, 148125), (625, 129165), (1185, 68125), (1635, 49375), (1875, 43055), (1975, 40875), (2725, 29625), (3125, 25833), (5925, 13625), (8175, 9875), (8611, 9375)]