28012365

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 53529600

約数和(自身を除く): 25517235

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 67, 95, 135, 163, 171, 201, 285, 335, 489, 513, 603, 815, 855, 1005, 1273, 1467, 1809, 2445, 2565, 3015, 3097, 3819, 4401, 6365, 7335, 9045, 9291, 10921, 11457, 15485, 19095, 22005, 27873, 32763, 34371, 46455, 54605, 57285, 83619, 98289, 139365, 163815, 171855, 207499, 294867, 418095, 491445, 622497, 1037495, 1474335, 1867491, 3112485, 5602473, 9337455, 28012365]

約数ペア:

[(1, 28012365), (3, 9337455), (5, 5602473), (9, 3112485), (15, 1867491), (19, 1474335), (27, 1037495), (45, 622497), (57, 491445), (67, 418095), (95, 294867), (135, 207499), (163, 171855), (171, 163815), (201, 139365), (285, 98289), (335, 83619), (489, 57285), (513, 54605), (603, 46455), (815, 34371), (855, 32763), (1005, 27873), (1273, 22005), (1467, 19095), (1809, 15485), (2445, 11457), (2565, 10921), (3015, 9291), (3097, 9045), (3819, 7335), (4401, 6365)]