13505625

素因数分解:

$3^2\times 5^4\times 7^4$

素因数の和:54

約数の個数: 75

約数和(自身を含む): 28438553

約数和(自身を除く): 14932928

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 63, 75, 105, 125, 147, 175, 225, 245, 315, 343, 375, 441, 525, 625, 735, 875, 1029, 1125, 1225, 1575, 1715, 1875, 2205, 2401, 2625, 3087, 3675, 4375, 5145, 5625, 6125, 7203, 7875, 8575, 11025, 12005, 13125, 15435, 18375, 21609, 25725, 30625, 36015, 39375, 42875, 55125, 60025, 77175, 91875, 108045, 128625, 180075, 214375, 275625, 300125, 385875, 540225, 643125, 900375, 1500625, 1929375, 2701125, 4501875, 13505625]

約数ペア:

[(1, 13505625), (3, 4501875), (5, 2701125), (7, 1929375), (9, 1500625), (15, 900375), (21, 643125), (25, 540225), (35, 385875), (45, 300125), (49, 275625), (63, 214375), (75, 180075), (105, 128625), (125, 108045), (147, 91875), (175, 77175), (225, 60025), (245, 55125), (315, 42875), (343, 39375), (375, 36015), (441, 30625), (525, 25725), (625, 21609), (735, 18375), (875, 15435), (1029, 13125), (1125, 12005), (1225, 11025), (1575, 8575), (1715, 7875), (1875, 7203), (2205, 6125), (2401, 5625), (2625, 5145), (3087, 4375)]