20998200

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{443}}^1$

素因数の和:541

約数の個数: 96

約数和(自身を含む): 66067200

約数和(自身を除く): 45069000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 79, 100, 120, 150, 158, 200, 237, 300, 316, 395, 443, 474, 600, 632, 790, 886, 948, 1185, 1329, 1580, 1772, 1896, 1975, 2215, 2370, 2658, 3160, 3544, 3950, 4430, 4740, 5316, 5925, 6645, 7900, 8860, 9480, 10632, 11075, 11850, 13290, 15800, 17720, 22150, 23700, 26580, 33225, 34997, 44300, 47400, 53160, 66450, 69994, 88600, 104991, 132900, 139988, 174985, 209982, 265800, 279976, 349970, 419964, 524955, 699940, 839928, 874925, 1049910, 1399880, 1749850, 2099820, 2624775, 3499700, 4199640, 5249550, 6999400, 10499100, 20998200]

約数ペア:

[(1, 20998200), (2, 10499100), (3, 6999400), (4, 5249550), (5, 4199640), (6, 3499700), (8, 2624775), (10, 2099820), (12, 1749850), (15, 1399880), (20, 1049910), (24, 874925), (25, 839928), (30, 699940), (40, 524955), (50, 419964), (60, 349970), (75, 279976), (79, 265800), (100, 209982), (120, 174985), (150, 139988), (158, 132900), (200, 104991), (237, 88600), (300, 69994), (316, 66450), (395, 53160), (443, 47400), (474, 44300), (600, 34997), (632, 33225), (790, 26580), (886, 23700), (948, 22150), (1185, 17720), (1329, 15800), (1580, 13290), (1772, 11850), (1896, 11075), (1975, 10632), (2215, 9480), (2370, 8860), (2658, 7900), (3160, 6645), (3544, 5925), (3950, 5316), (4430, 4740)]