828750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:55

約数の個数: 80

約数和(自身を含む): 2361744

約数和(自身を除く): 1532994

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 25, 26, 30, 34, 39, 50, 51, 65, 75, 78, 85, 102, 125, 130, 150, 170, 195, 221, 250, 255, 325, 375, 390, 425, 442, 510, 625, 650, 663, 750, 850, 975, 1105, 1250, 1275, 1326, 1625, 1875, 1950, 2125, 2210, 2550, 3250, 3315, 3750, 4250, 4875, 5525, 6375, 6630, 8125, 9750, 10625, 11050, 12750, 16250, 16575, 21250, 24375, 27625, 31875, 33150, 48750, 55250, 63750, 82875, 138125, 165750, 276250, 414375, 828750]

約数ペア:

[(1, 828750), (2, 414375), (3, 276250), (5, 165750), (6, 138125), (10, 82875), (13, 63750), (15, 55250), (17, 48750), (25, 33150), (26, 31875), (30, 27625), (34, 24375), (39, 21250), (50, 16575), (51, 16250), (65, 12750), (75, 11050), (78, 10625), (85, 9750), (102, 8125), (125, 6630), (130, 6375), (150, 5525), (170, 4875), (195, 4250), (221, 3750), (250, 3315), (255, 3250), (325, 2550), (375, 2210), (390, 2125), (425, 1950), (442, 1875), (510, 1625), (625, 1326), (650, 1275), (663, 1250), (750, 1105), (850, 975)]