31142020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:341

約数の個数: 96

約数和(自身を含む): 81962496

約数和(自身を除く): 50820476

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 71, 91, 130, 140, 142, 182, 241, 260, 284, 355, 364, 455, 482, 497, 710, 910, 923, 964, 994, 1205, 1420, 1687, 1820, 1846, 1988, 2410, 2485, 3133, 3374, 3692, 4615, 4820, 4970, 6266, 6461, 6748, 8435, 9230, 9940, 12532, 12922, 15665, 16870, 17111, 18460, 21931, 25844, 31330, 32305, 33740, 34222, 43862, 62660, 64610, 68444, 85555, 87724, 109655, 119777, 129220, 171110, 219310, 222443, 239554, 342220, 438620, 444886, 479108, 598885, 889772, 1112215, 1197770, 1557101, 2224430, 2395540, 3114202, 4448860, 6228404, 7785505, 15571010, 31142020]

約数ペア:

[(1, 31142020), (2, 15571010), (4, 7785505), (5, 6228404), (7, 4448860), (10, 3114202), (13, 2395540), (14, 2224430), (20, 1557101), (26, 1197770), (28, 1112215), (35, 889772), (52, 598885), (65, 479108), (70, 444886), (71, 438620), (91, 342220), (130, 239554), (140, 222443), (142, 219310), (182, 171110), (241, 129220), (260, 119777), (284, 109655), (355, 87724), (364, 85555), (455, 68444), (482, 64610), (497, 62660), (710, 43862), (910, 34222), (923, 33740), (964, 32305), (994, 31330), (1205, 25844), (1420, 21931), (1687, 18460), (1820, 17111), (1846, 16870), (1988, 15665), (2410, 12922), (2485, 12532), (3133, 9940), (3374, 9230), (3692, 8435), (4615, 6748), (4820, 6461), (4970, 6266)]