18045225

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:367

約数の個数: 72

約数和(自身を含む): 36908352

約数和(自身を除く): 18863127

約数列:

[1, 3, 5, 9, 11, 15, 23, 25, 33, 45, 55, 69, 75, 99, 115, 165, 207, 225, 253, 275, 317, 345, 495, 575, 759, 825, 951, 1035, 1265, 1585, 1725, 2277, 2475, 2853, 3487, 3795, 4755, 5175, 6325, 7291, 7925, 10461, 11385, 14265, 17435, 18975, 21873, 23775, 31383, 36455, 52305, 56925, 65619, 71325, 80201, 87175, 109365, 156915, 182275, 240603, 261525, 328095, 401005, 546825, 721809, 784575, 1203015, 1640475, 2005025, 3609045, 6015075, 18045225]

約数ペア:

[(1, 18045225), (3, 6015075), (5, 3609045), (9, 2005025), (11, 1640475), (15, 1203015), (23, 784575), (25, 721809), (33, 546825), (45, 401005), (55, 328095), (69, 261525), (75, 240603), (99, 182275), (115, 156915), (165, 109365), (207, 87175), (225, 80201), (253, 71325), (275, 65619), (317, 56925), (345, 52305), (495, 36455), (575, 31383), (759, 23775), (825, 21873), (951, 18975), (1035, 17435), (1265, 14265), (1585, 11385), (1725, 10461), (2277, 7925), (2475, 7291), (2853, 6325), (3487, 5175), (3795, 4755)]