19695075

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 34569216

約数和(自身を除く): 14874141

約数列:

[1, 3, 5, 15, 25, 31, 43, 75, 93, 129, 155, 197, 215, 465, 591, 645, 775, 985, 1075, 1333, 2325, 2955, 3225, 3999, 4925, 6107, 6665, 8471, 14775, 18321, 19995, 25413, 30535, 33325, 42355, 91605, 99975, 127065, 152675, 211775, 262601, 458025, 635325, 787803, 1313005, 3939015, 6565025, 19695075]

約数ペア:

[(1, 19695075), (3, 6565025), (5, 3939015), (15, 1313005), (25, 787803), (31, 635325), (43, 458025), (75, 262601), (93, 211775), (129, 152675), (155, 127065), (197, 99975), (215, 91605), (465, 42355), (591, 33325), (645, 30535), (775, 25413), (985, 19995), (1075, 18321), (1333, 14775), (2325, 8471), (2955, 6665), (3225, 6107), (3999, 4925)]