222881425

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{743}}^1$

素因数の和:850

約数の個数: 36

約数和(自身を含む): 303891264

約数和(自身を除く): 81009839

約数列:

[1, 5, 13, 25, 65, 71, 169, 325, 355, 743, 845, 923, 1775, 3715, 4225, 4615, 9659, 11999, 18575, 23075, 48295, 52753, 59995, 125567, 241475, 263765, 299975, 627835, 685789, 1318825, 3139175, 3428945, 8915257, 17144725, 44576285, 222881425]

約数ペア:

[(1, 222881425), (5, 44576285), (13, 17144725), (25, 8915257), (65, 3428945), (71, 3139175), (169, 1318825), (325, 685789), (355, 627835), (743, 299975), (845, 263765), (923, 241475), (1775, 125567), (3715, 59995), (4225, 52753), (4615, 48295), (9659, 23075), (11999, 18575)]