20116460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1579}}^1$

素因数の和:1615

約数の個数: 72

約数和(自身を含む): 52955280

約数和(自身を除く): 32838820

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1579, 1820, 2548, 3158, 3185, 6316, 6370, 7895, 11053, 12740, 15790, 20527, 22106, 31580, 41054, 44212, 55265, 77371, 82108, 102635, 110530, 143689, 154742, 205270, 221060, 287378, 309484, 386855, 410540, 574756, 718445, 773710, 1005823, 1436890, 1547420, 2011646, 2873780, 4023292, 5029115, 10058230, 20116460]

約数ペア:

[(1, 20116460), (2, 10058230), (4, 5029115), (5, 4023292), (7, 2873780), (10, 2011646), (13, 1547420), (14, 1436890), (20, 1005823), (26, 773710), (28, 718445), (35, 574756), (49, 410540), (52, 386855), (65, 309484), (70, 287378), (91, 221060), (98, 205270), (130, 154742), (140, 143689), (182, 110530), (196, 102635), (245, 82108), (260, 77371), (364, 55265), (455, 44212), (490, 41054), (637, 31580), (910, 22106), (980, 20527), (1274, 15790), (1579, 12740), (1820, 11053), (2548, 7895), (3158, 6370), (3185, 6316)]