1980500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{233}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 4599504

約数和(自身を除く): 2619004

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 170, 233, 250, 340, 425, 466, 500, 850, 932, 1165, 1700, 2125, 2330, 3961, 4250, 4660, 5825, 7922, 8500, 11650, 15844, 19805, 23300, 29125, 39610, 58250, 79220, 99025, 116500, 198050, 396100, 495125, 990250, 1980500]

約数ペア:

[(1, 1980500), (2, 990250), (4, 495125), (5, 396100), (10, 198050), (17, 116500), (20, 99025), (25, 79220), (34, 58250), (50, 39610), (68, 29125), (85, 23300), (100, 19805), (125, 15844), (170, 11650), (233, 8500), (250, 7922), (340, 5825), (425, 4660), (466, 4250), (500, 3961), (850, 2330), (932, 2125), (1165, 1700)]