82887500

素因数分解:

$2^2\times 5^5\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:397

約数の個数: 72

約数和(自身を含む): 191394000

約数和(自身を除く): 108506500

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 349, 380, 475, 500, 625, 698, 950, 1250, 1396, 1745, 1900, 2375, 2500, 3125, 3490, 4750, 6250, 6631, 6980, 8725, 9500, 11875, 12500, 13262, 17450, 23750, 26524, 33155, 34900, 43625, 47500, 59375, 66310, 87250, 118750, 132620, 165775, 174500, 218125, 237500, 331550, 436250, 663100, 828875, 872500, 1090625, 1657750, 2181250, 3315500, 4144375, 4362500, 8288750, 16577500, 20721875, 41443750, 82887500]

約数ペア:

[(1, 82887500), (2, 41443750), (4, 20721875), (5, 16577500), (10, 8288750), (19, 4362500), (20, 4144375), (25, 3315500), (38, 2181250), (50, 1657750), (76, 1090625), (95, 872500), (100, 828875), (125, 663100), (190, 436250), (250, 331550), (349, 237500), (380, 218125), (475, 174500), (500, 165775), (625, 132620), (698, 118750), (950, 87250), (1250, 66310), (1396, 59375), (1745, 47500), (1900, 43625), (2375, 34900), (2500, 33155), (3125, 26524), (3490, 23750), (4750, 17450), (6250, 13262), (6631, 12500), (6980, 11875), (8725, 9500)]