249988620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{1381}}^1$

素因数の和:1831

約数の個数: 96

約数和(自身を含む): 802400256

約数和(自身を除く): 552411636

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 431, 862, 1293, 1381, 1724, 2155, 2586, 2762, 3017, 4143, 4310, 5172, 5524, 6034, 6465, 6905, 8286, 8620, 9051, 9667, 12068, 12930, 13810, 15085, 16572, 18102, 19334, 20715, 25860, 27620, 29001, 30170, 36204, 38668, 41430, 45255, 48335, 58002, 60340, 82860, 90510, 96670, 116004, 145005, 181020, 193340, 290010, 580020, 595211, 1190422, 1785633, 2380844, 2976055, 3571266, 4166477, 5952110, 7142532, 8332954, 8928165, 11904220, 12499431, 16665908, 17856330, 20832385, 24998862, 35712660, 41664770, 49997724, 62497155, 83329540, 124994310, 249988620]

約数ペア:

[(1, 249988620), (2, 124994310), (3, 83329540), (4, 62497155), (5, 49997724), (6, 41664770), (7, 35712660), (10, 24998862), (12, 20832385), (14, 17856330), (15, 16665908), (20, 12499431), (21, 11904220), (28, 8928165), (30, 8332954), (35, 7142532), (42, 5952110), (60, 4166477), (70, 3571266), (84, 2976055), (105, 2380844), (140, 1785633), (210, 1190422), (420, 595211), (431, 580020), (862, 290010), (1293, 193340), (1381, 181020), (1724, 145005), (2155, 116004), (2586, 96670), (2762, 90510), (3017, 82860), (4143, 60340), (4310, 58002), (5172, 48335), (5524, 45255), (6034, 41430), (6465, 38668), (6905, 36204), (8286, 30170), (8620, 29001), (9051, 27620), (9667, 25860), (12068, 20715), (12930, 19334), (13810, 18102), (15085, 16572)]