15380500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1619}}^1$

素因数の和:1657

約数の個数: 48

約数和(自身を含む): 35380800

約数和(自身を除く): 20000300

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 475, 500, 950, 1619, 1900, 2375, 3238, 4750, 6476, 8095, 9500, 16190, 30761, 32380, 40475, 61522, 80950, 123044, 153805, 161900, 202375, 307610, 404750, 615220, 769025, 809500, 1538050, 3076100, 3845125, 7690250, 15380500]

約数ペア:

[(1, 15380500), (2, 7690250), (4, 3845125), (5, 3076100), (10, 1538050), (19, 809500), (20, 769025), (25, 615220), (38, 404750), (50, 307610), (76, 202375), (95, 161900), (100, 153805), (125, 123044), (190, 80950), (250, 61522), (380, 40475), (475, 32380), (500, 30761), (950, 16190), (1619, 9500), (1900, 8095), (2375, 6476), (3238, 4750)]