128797725

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{101}}^1\times {\mathrm{347}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 250885728

約数和(自身を除く): 122088003

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 101, 105, 147, 175, 245, 303, 347, 505, 525, 707, 735, 1041, 1225, 1515, 1735, 2121, 2429, 2525, 3535, 3675, 4949, 5205, 7287, 7575, 8675, 10605, 12145, 14847, 17003, 17675, 24745, 26025, 35047, 36435, 51009, 53025, 60725, 74235, 85015, 105141, 123725, 175235, 182175, 245329, 255045, 371175, 425075, 525705, 735987, 876175, 1226645, 1275225, 1717303, 2628525, 3679935, 5151909, 6133225, 8586515, 18399675, 25759545, 42932575, 128797725]

約数ペア:

[(1, 128797725), (3, 42932575), (5, 25759545), (7, 18399675), (15, 8586515), (21, 6133225), (25, 5151909), (35, 3679935), (49, 2628525), (75, 1717303), (101, 1275225), (105, 1226645), (147, 876175), (175, 735987), (245, 525705), (303, 425075), (347, 371175), (505, 255045), (525, 245329), (707, 182175), (735, 175235), (1041, 123725), (1225, 105141), (1515, 85015), (1735, 74235), (2121, 60725), (2429, 53025), (2525, 51009), (3535, 36435), (3675, 35047), (4949, 26025), (5205, 24745), (7287, 17675), (7575, 17003), (8675, 14847), (10605, 12145)]