31361580

素因数分解:

$2^2\times 3^8\times 5^1\times {\mathrm{239}}^1$

素因数の和:272

約数の個数: 108

約数和(自身を含む): 99197280

約数和(自身を除く): 67835700

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, 239, 243, 270, 324, 405, 478, 486, 540, 717, 729, 810, 956, 972, 1195, 1215, 1434, 1458, 1620, 2151, 2187, 2390, 2430, 2868, 2916, 3585, 3645, 4302, 4374, 4780, 4860, 6453, 6561, 7170, 7290, 8604, 8748, 10755, 10935, 12906, 13122, 14340, 14580, 19359, 21510, 21870, 25812, 26244, 32265, 32805, 38718, 43020, 43740, 58077, 64530, 65610, 77436, 96795, 116154, 129060, 131220, 174231, 193590, 232308, 290385, 348462, 387180, 522693, 580770, 696924, 871155, 1045386, 1161540, 1568079, 1742310, 2090772, 2613465, 3136158, 3484620, 5226930, 6272316, 7840395, 10453860, 15680790, 31361580]

約数ペア:

[(1, 31361580), (2, 15680790), (3, 10453860), (4, 7840395), (5, 6272316), (6, 5226930), (9, 3484620), (10, 3136158), (12, 2613465), (15, 2090772), (18, 1742310), (20, 1568079), (27, 1161540), (30, 1045386), (36, 871155), (45, 696924), (54, 580770), (60, 522693), (81, 387180), (90, 348462), (108, 290385), (135, 232308), (162, 193590), (180, 174231), (239, 131220), (243, 129060), (270, 116154), (324, 96795), (405, 77436), (478, 65610), (486, 64530), (540, 58077), (717, 43740), (729, 43020), (810, 38718), (956, 32805), (972, 32265), (1195, 26244), (1215, 25812), (1434, 21870), (1458, 21510), (1620, 19359), (2151, 14580), (2187, 14340), (2390, 13122), (2430, 12906), (2868, 10935), (2916, 10755), (3585, 8748), (3645, 8604), (4302, 7290), (4374, 7170), (4780, 6561), (4860, 6453)]