28693875

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{643}}^1$

素因数の和:685

約数の個数: 64

約数和(自身を含む): 57867264

約数和(自身を除く): 29173389

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 51, 75, 85, 105, 119, 125, 175, 255, 357, 375, 425, 525, 595, 643, 875, 1275, 1785, 1929, 2125, 2625, 2975, 3215, 4501, 6375, 8925, 9645, 10931, 13503, 14875, 16075, 22505, 32793, 44625, 48225, 54655, 67515, 76517, 80375, 112525, 163965, 229551, 241125, 273275, 337575, 382585, 562625, 819825, 1147755, 1366375, 1687875, 1912925, 4099125, 5738775, 9564625, 28693875]

約数ペア:

[(1, 28693875), (3, 9564625), (5, 5738775), (7, 4099125), (15, 1912925), (17, 1687875), (21, 1366375), (25, 1147755), (35, 819825), (51, 562625), (75, 382585), (85, 337575), (105, 273275), (119, 241125), (125, 229551), (175, 163965), (255, 112525), (357, 80375), (375, 76517), (425, 67515), (525, 54655), (595, 48225), (643, 44625), (875, 32793), (1275, 22505), (1785, 16075), (1929, 14875), (2125, 13503), (2625, 10931), (2975, 9645), (3215, 8925), (4501, 6375)]