20729129512

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{251983}}^1$

素因数の和:252122

約数の個数: 64

約数和(自身を含む): 48259975680

約数和(自身を除く): 27530846168

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 113, 182, 226, 364, 452, 728, 791, 904, 1469, 1582, 2938, 3164, 5876, 6328, 10283, 11752, 20566, 41132, 82264, 251983, 503966, 1007932, 1763881, 2015864, 3275779, 3527762, 6551558, 7055524, 13103116, 14111048, 22930453, 26206232, 28474079, 45860906, 56948158, 91721812, 113896316, 183443624, 199318553, 227792632, 370163027, 398637106, 740326054, 797274212, 1480652108, 1594548424, 2591141189, 2961304216, 5182282378, 10364564756, 20729129512]

約数ペア:

[(1, 20729129512), (2, 10364564756), (4, 5182282378), (7, 2961304216), (8, 2591141189), (13, 1594548424), (14, 1480652108), (26, 797274212), (28, 740326054), (52, 398637106), (56, 370163027), (91, 227792632), (104, 199318553), (113, 183443624), (182, 113896316), (226, 91721812), (364, 56948158), (452, 45860906), (728, 28474079), (791, 26206232), (904, 22930453), (1469, 14111048), (1582, 13103116), (2938, 7055524), (3164, 6551558), (5876, 3527762), (6328, 3275779), (10283, 2015864), (11752, 1763881), (20566, 1007932), (41132, 503966), (82264, 251983)]