28879375

素因数分解:

$5^4\times 7^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:98

約数の個数: 60

約数和(自身を含む): 44873136

約数和(自身を除く): 15993761

約数列:

[1, 5, 7, 23, 25, 35, 41, 49, 115, 125, 161, 175, 205, 245, 287, 575, 625, 805, 875, 943, 1025, 1127, 1225, 1435, 2009, 2875, 4025, 4375, 4715, 5125, 5635, 6125, 6601, 7175, 10045, 14375, 20125, 23575, 25625, 28175, 30625, 33005, 35875, 46207, 50225, 100625, 117875, 140875, 165025, 179375, 231035, 251125, 589375, 704375, 825125, 1155175, 1255625, 4125625, 5775875, 28879375]

約数ペア:

[(1, 28879375), (5, 5775875), (7, 4125625), (23, 1255625), (25, 1155175), (35, 825125), (41, 704375), (49, 589375), (115, 251125), (125, 231035), (161, 179375), (175, 165025), (205, 140875), (245, 117875), (287, 100625), (575, 50225), (625, 46207), (805, 35875), (875, 33005), (943, 30625), (1025, 28175), (1127, 25625), (1225, 23575), (1435, 20125), (2009, 14375), (2875, 10045), (4025, 7175), (4375, 6601), (4715, 6125), (5125, 5635)]