65980000

素因数分解:

$2^5\times 5^4\times {\mathrm{3299}}^1$

素因数の和:3329

約数の個数: 60

約数和(自身を含む): 162369900

約数和(自身を除く): 96389900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 2000, 2500, 3299, 4000, 5000, 6598, 10000, 13196, 16495, 20000, 26392, 32990, 52784, 65980, 82475, 105568, 131960, 164950, 263920, 329900, 412375, 527840, 659800, 824750, 1319600, 1649500, 2061875, 2639200, 3299000, 4123750, 6598000, 8247500, 13196000, 16495000, 32990000, 65980000]

約数ペア:

[(1, 65980000), (2, 32990000), (4, 16495000), (5, 13196000), (8, 8247500), (10, 6598000), (16, 4123750), (20, 3299000), (25, 2639200), (32, 2061875), (40, 1649500), (50, 1319600), (80, 824750), (100, 659800), (125, 527840), (160, 412375), (200, 329900), (250, 263920), (400, 164950), (500, 131960), (625, 105568), (800, 82475), (1000, 65980), (1250, 52784), (2000, 32990), (2500, 26392), (3299, 20000), (4000, 16495), (5000, 13196), (6598, 10000)]