51815925

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{167}}^1\times {\mathrm{197}}^1$

素因数の和:387

約数の個数: 72

約数和(自身を含む): 107243136

約数和(自身を除く): 55427211

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 167, 175, 197, 225, 315, 501, 525, 591, 835, 985, 1169, 1379, 1503, 1575, 1773, 2505, 2955, 3507, 4137, 4175, 4925, 5845, 6895, 7515, 8865, 10521, 12411, 12525, 14775, 17535, 20685, 29225, 32899, 34475, 37575, 44325, 52605, 62055, 87675, 98697, 103425, 164495, 230293, 263025, 296091, 310275, 493485, 690879, 822475, 1151465, 1480455, 2072637, 2467425, 3454395, 5757325, 7402275, 10363185, 17271975, 51815925]

約数ペア:

[(1, 51815925), (3, 17271975), (5, 10363185), (7, 7402275), (9, 5757325), (15, 3454395), (21, 2467425), (25, 2072637), (35, 1480455), (45, 1151465), (63, 822475), (75, 690879), (105, 493485), (167, 310275), (175, 296091), (197, 263025), (225, 230293), (315, 164495), (501, 103425), (525, 98697), (591, 87675), (835, 62055), (985, 52605), (1169, 44325), (1379, 37575), (1503, 34475), (1575, 32899), (1773, 29225), (2505, 20685), (2955, 17535), (3507, 14775), (4137, 12525), (4175, 12411), (4925, 10521), (5845, 8865), (6895, 7515)]