20287500

素因数分解:

$2^2\times 3^1\times 5^5\times {\mathrm{541}}^1$

素因数の和:573

約数の個数: 72

約数和(自身を含む): 59277456

約数和(自身を除く): 38989956

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 125, 150, 250, 300, 375, 500, 541, 625, 750, 1082, 1250, 1500, 1623, 1875, 2164, 2500, 2705, 3125, 3246, 3750, 5410, 6250, 6492, 7500, 8115, 9375, 10820, 12500, 13525, 16230, 18750, 27050, 32460, 37500, 40575, 54100, 67625, 81150, 135250, 162300, 202875, 270500, 338125, 405750, 676250, 811500, 1014375, 1352500, 1690625, 2028750, 3381250, 4057500, 5071875, 6762500, 10143750, 20287500]

約数ペア:

[(1, 20287500), (2, 10143750), (3, 6762500), (4, 5071875), (5, 4057500), (6, 3381250), (10, 2028750), (12, 1690625), (15, 1352500), (20, 1014375), (25, 811500), (30, 676250), (50, 405750), (60, 338125), (75, 270500), (100, 202875), (125, 162300), (150, 135250), (250, 81150), (300, 67625), (375, 54100), (500, 40575), (541, 37500), (625, 32460), (750, 27050), (1082, 18750), (1250, 16230), (1500, 13525), (1623, 12500), (1875, 10820), (2164, 9375), (2500, 8115), (2705, 7500), (3125, 6492), (3246, 6250), (3750, 5410)]