27889225

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:107

約数の個数: 72

約数和(自身を含む): 45747072

約数和(自身を除く): 17857847

約数列:

[1, 5, 7, 13, 23, 25, 35, 41, 65, 91, 115, 161, 169, 175, 205, 287, 299, 325, 455, 533, 575, 805, 845, 943, 1025, 1183, 1435, 1495, 2093, 2275, 2665, 3731, 3887, 4025, 4225, 4715, 5915, 6601, 6929, 7175, 7475, 10465, 12259, 13325, 18655, 19435, 23575, 27209, 29575, 33005, 34645, 48503, 52325, 61295, 85813, 93275, 97175, 136045, 159367, 165025, 173225, 242515, 306475, 429065, 680225, 796835, 1115569, 1212575, 2145325, 3984175, 5577845, 27889225]

約数ペア:

[(1, 27889225), (5, 5577845), (7, 3984175), (13, 2145325), (23, 1212575), (25, 1115569), (35, 796835), (41, 680225), (65, 429065), (91, 306475), (115, 242515), (161, 173225), (169, 165025), (175, 159367), (205, 136045), (287, 97175), (299, 93275), (325, 85813), (455, 61295), (533, 52325), (575, 48503), (805, 34645), (845, 33005), (943, 29575), (1025, 27209), (1183, 23575), (1435, 19435), (1495, 18655), (2093, 13325), (2275, 12259), (2665, 10465), (3731, 7475), (3887, 7175), (4025, 6929), (4225, 6601), (4715, 5915)]