20421184500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{4538041}}^1$

素因数の和:4538066

約数の個数: 72

約数和(自身を含む): 64422044232

約数和(自身を除く): 44000859732

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 750, 900, 1125, 1500, 2250, 4500, 4538041, 9076082, 13614123, 18152164, 22690205, 27228246, 40842369, 45380410, 54456492, 68070615, 81684738, 90760820, 113451025, 136141230, 163369476, 204211845, 226902050, 272282460, 340353075, 408423690, 453804100, 567255125, 680706150, 816847380, 1021059225, 1134510250, 1361412300, 1701765375, 2042118450, 2269020500, 3403530750, 4084236900, 5105296125, 6807061500, 10210592250, 20421184500]

約数ペア:

[(1, 20421184500), (2, 10210592250), (3, 6807061500), (4, 5105296125), (5, 4084236900), (6, 3403530750), (9, 2269020500), (10, 2042118450), (12, 1701765375), (15, 1361412300), (18, 1134510250), (20, 1021059225), (25, 816847380), (30, 680706150), (36, 567255125), (45, 453804100), (50, 408423690), (60, 340353075), (75, 272282460), (90, 226902050), (100, 204211845), (125, 163369476), (150, 136141230), (180, 113451025), (225, 90760820), (250, 81684738), (300, 68070615), (375, 54456492), (450, 45380410), (500, 40842369), (750, 27228246), (900, 22690205), (1125, 18152164), (1500, 13614123), (2250, 9076082), (4500, 4538041)]