28116540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{863}}^1$

素因数の和:1059

約数の個数: 72

約数和(自身を含む): 85857408

約数和(自身を除く): 57740868

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 181, 362, 543, 724, 863, 905, 1086, 1629, 1726, 1810, 2172, 2589, 2715, 3258, 3452, 3620, 4315, 5178, 5430, 6516, 7767, 8145, 8630, 10356, 10860, 12945, 15534, 16290, 17260, 25890, 31068, 32580, 38835, 51780, 77670, 155340, 156203, 312406, 468609, 624812, 781015, 937218, 1405827, 1562030, 1874436, 2343045, 2811654, 3124060, 4686090, 5623308, 7029135, 9372180, 14058270, 28116540]

約数ペア:

[(1, 28116540), (2, 14058270), (3, 9372180), (4, 7029135), (5, 5623308), (6, 4686090), (9, 3124060), (10, 2811654), (12, 2343045), (15, 1874436), (18, 1562030), (20, 1405827), (30, 937218), (36, 781015), (45, 624812), (60, 468609), (90, 312406), (180, 156203), (181, 155340), (362, 77670), (543, 51780), (724, 38835), (863, 32580), (905, 31068), (1086, 25890), (1629, 17260), (1726, 16290), (1810, 15534), (2172, 12945), (2589, 10860), (2715, 10356), (3258, 8630), (3452, 8145), (3620, 7767), (4315, 6516), (5178, 5430)]