61407780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{20887}}^1$

素因数の和:20913

約数の個数: 72

約数和(自身を含む): 200023488

約数和(自身を除く): 138615708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 20887, 41774, 62661, 83548, 104435, 125322, 146209, 208870, 250644, 292418, 313305, 417740, 438627, 584836, 626610, 731045, 877254, 1023463, 1253220, 1462090, 1754508, 2046926, 2193135, 2924180, 3070389, 4093852, 4386270, 5117315, 6140778, 8772540, 10234630, 12281556, 15351945, 20469260, 30703890, 61407780]

約数ペア:

[(1, 61407780), (2, 30703890), (3, 20469260), (4, 15351945), (5, 12281556), (6, 10234630), (7, 8772540), (10, 6140778), (12, 5117315), (14, 4386270), (15, 4093852), (20, 3070389), (21, 2924180), (28, 2193135), (30, 2046926), (35, 1754508), (42, 1462090), (49, 1253220), (60, 1023463), (70, 877254), (84, 731045), (98, 626610), (105, 584836), (140, 438627), (147, 417740), (196, 313305), (210, 292418), (245, 250644), (294, 208870), (420, 146209), (490, 125322), (588, 104435), (735, 83548), (980, 62661), (1470, 41774), (2940, 20887)]