28918620

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{17851}}^1$

素因数の和:17872

約数の個数: 60

約数和(自身を含む): 90723864

約数和(自身を除く): 61805244

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 17851, 35702, 53553, 71404, 89255, 107106, 160659, 178510, 214212, 267765, 321318, 357020, 481977, 535530, 642636, 803295, 963954, 1071060, 1445931, 1606590, 1927908, 2409885, 2891862, 3213180, 4819770, 5783724, 7229655, 9639540, 14459310, 28918620]

約数ペア:

[(1, 28918620), (2, 14459310), (3, 9639540), (4, 7229655), (5, 5783724), (6, 4819770), (9, 3213180), (10, 2891862), (12, 2409885), (15, 1927908), (18, 1606590), (20, 1445931), (27, 1071060), (30, 963954), (36, 803295), (45, 642636), (54, 535530), (60, 481977), (81, 357020), (90, 321318), (108, 267765), (135, 214212), (162, 178510), (180, 160659), (270, 107106), (324, 89255), (405, 71404), (540, 53553), (810, 35702), (1620, 17851)]