1998700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:127

約数の個数: 72

約数和(自身を含む): 4999680

約数和(自身を除く): 3000980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 25, 44, 46, 50, 55, 79, 92, 100, 110, 115, 158, 220, 230, 253, 275, 316, 395, 460, 506, 550, 575, 790, 869, 1012, 1100, 1150, 1265, 1580, 1738, 1817, 1975, 2300, 2530, 3476, 3634, 3950, 4345, 5060, 6325, 7268, 7900, 8690, 9085, 12650, 17380, 18170, 19987, 21725, 25300, 36340, 39974, 43450, 45425, 79948, 86900, 90850, 99935, 181700, 199870, 399740, 499675, 999350, 1998700]

約数ペア:

[(1, 1998700), (2, 999350), (4, 499675), (5, 399740), (10, 199870), (11, 181700), (20, 99935), (22, 90850), (23, 86900), (25, 79948), (44, 45425), (46, 43450), (50, 39974), (55, 36340), (79, 25300), (92, 21725), (100, 19987), (110, 18170), (115, 17380), (158, 12650), (220, 9085), (230, 8690), (253, 7900), (275, 7268), (316, 6325), (395, 5060), (460, 4345), (506, 3950), (550, 3634), (575, 3476), (790, 2530), (869, 2300), (1012, 1975), (1100, 1817), (1150, 1738), (1265, 1580)]