209959920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{881}}^1$

素因数の和:1231

約数の個数: 120

約数和(自身を含む): 708048432

約数和(自身を除く): 498088512

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 331, 360, 662, 720, 881, 993, 1324, 1655, 1762, 1986, 2643, 2648, 2979, 3310, 3524, 3972, 4405, 4965, 5286, 5296, 5958, 6620, 7048, 7929, 7944, 8810, 9930, 10572, 11916, 13215, 13240, 14096, 14895, 15858, 15888, 17620, 19860, 21144, 23832, 26430, 26480, 29790, 31716, 35240, 39645, 39720, 42288, 47664, 52860, 59580, 63432, 70480, 79290, 79440, 105720, 119160, 126864, 158580, 211440, 238320, 291611, 317160, 583222, 634320, 874833, 1166444, 1458055, 1749666, 2332888, 2624499, 2916110, 3499332, 4374165, 4665776, 5248998, 5832220, 6998664, 8748330, 10497996, 11664440, 13122495, 13997328, 17496660, 20995992, 23328880, 26244990, 34993320, 41991984, 52489980, 69986640, 104979960, 209959920]

約数ペア:

[(1, 209959920), (2, 104979960), (3, 69986640), (4, 52489980), (5, 41991984), (6, 34993320), (8, 26244990), (9, 23328880), (10, 20995992), (12, 17496660), (15, 13997328), (16, 13122495), (18, 11664440), (20, 10497996), (24, 8748330), (30, 6998664), (36, 5832220), (40, 5248998), (45, 4665776), (48, 4374165), (60, 3499332), (72, 2916110), (80, 2624499), (90, 2332888), (120, 1749666), (144, 1458055), (180, 1166444), (240, 874833), (331, 634320), (360, 583222), (662, 317160), (720, 291611), (881, 238320), (993, 211440), (1324, 158580), (1655, 126864), (1762, 119160), (1986, 105720), (2643, 79440), (2648, 79290), (2979, 70480), (3310, 63432), (3524, 59580), (3972, 52860), (4405, 47664), (4965, 42288), (5286, 39720), (5296, 39645), (5958, 35240), (6620, 31716), (7048, 29790), (7929, 26480), (7944, 26430), (8810, 23832), (9930, 21144), (10572, 19860), (11916, 17620), (13215, 15888), (13240, 15858), (14096, 14895)]