199909620

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{123401}}^1$

素因数の和:123422

約数の個数: 60

約数和(自身を含む): 627128964

約数和(自身を除く): 427219344

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 123401, 246802, 370203, 493604, 617005, 740406, 1110609, 1234010, 1480812, 1851015, 2221218, 2468020, 3331827, 3702030, 4442436, 5553045, 6663654, 7404060, 9995481, 11106090, 13327308, 16659135, 19990962, 22212180, 33318270, 39981924, 49977405, 66636540, 99954810, 199909620]

約数ペア:

[(1, 199909620), (2, 99954810), (3, 66636540), (4, 49977405), (5, 39981924), (6, 33318270), (9, 22212180), (10, 19990962), (12, 16659135), (15, 13327308), (18, 11106090), (20, 9995481), (27, 7404060), (30, 6663654), (36, 5553045), (45, 4442436), (54, 3702030), (60, 3331827), (81, 2468020), (90, 2221218), (108, 1851015), (135, 1480812), (162, 1234010), (180, 1110609), (270, 740406), (324, 617005), (405, 493604), (540, 370203), (810, 246802), (1620, 123401)]