198821790

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{631}}^1$

素因数の和:1039

約数の個数: 80

約数和(自身を含む): 536833440

約数和(自身を除く): 338011650

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 389, 405, 631, 778, 810, 1167, 1262, 1893, 1945, 2334, 3155, 3501, 3786, 3890, 5679, 5835, 6310, 7002, 9465, 10503, 11358, 11670, 17037, 17505, 18930, 21006, 28395, 31509, 34074, 35010, 51111, 52515, 56790, 63018, 85185, 102222, 105030, 157545, 170370, 245459, 255555, 315090, 490918, 511110, 736377, 1227295, 1472754, 2209131, 2454590, 3681885, 4418262, 6627393, 7363770, 11045655, 13254786, 19882179, 22091310, 33136965, 39764358, 66273930, 99410895, 198821790]

約数ペア:

[(1, 198821790), (2, 99410895), (3, 66273930), (5, 39764358), (6, 33136965), (9, 22091310), (10, 19882179), (15, 13254786), (18, 11045655), (27, 7363770), (30, 6627393), (45, 4418262), (54, 3681885), (81, 2454590), (90, 2209131), (135, 1472754), (162, 1227295), (270, 736377), (389, 511110), (405, 490918), (631, 315090), (778, 255555), (810, 245459), (1167, 170370), (1262, 157545), (1893, 105030), (1945, 102222), (2334, 85185), (3155, 63018), (3501, 56790), (3786, 52515), (3890, 51111), (5679, 35010), (5835, 34074), (6310, 31509), (7002, 28395), (9465, 21006), (10503, 18930), (11358, 17505), (11670, 17037)]