90888140

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{13249}}^1$

素因数の和:13279

約数の個数: 48

約数和(自身を含む): 222600000

約数和(自身を除く): 131711860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 13249, 26498, 52996, 66245, 92743, 132490, 185486, 264980, 370972, 463715, 649201, 927430, 1298402, 1854860, 2596804, 3246005, 4544407, 6492010, 9088814, 12984020, 18177628, 22722035, 45444070, 90888140]

約数ペア:

[(1, 90888140), (2, 45444070), (4, 22722035), (5, 18177628), (7, 12984020), (10, 9088814), (14, 6492010), (20, 4544407), (28, 3246005), (35, 2596804), (49, 1854860), (70, 1298402), (98, 927430), (140, 649201), (196, 463715), (245, 370972), (343, 264980), (490, 185486), (686, 132490), (980, 92743), (1372, 66245), (1715, 52996), (3430, 26498), (6860, 13249)]