213907175

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 294481152

約数和(自身を除く): 80573977

約数列:

[1, 5, 17, 25, 37, 61, 85, 185, 223, 305, 425, 629, 925, 1037, 1115, 1525, 2257, 3145, 3791, 5185, 5575, 8251, 11285, 13603, 15725, 18955, 25925, 38369, 41255, 56425, 68015, 94775, 140267, 191845, 206275, 231251, 340075, 503311, 701335, 959225, 1156255, 2516555, 3506675, 5781275, 8556287, 12582775, 42781435, 213907175]

約数ペア:

[(1, 213907175), (5, 42781435), (17, 12582775), (25, 8556287), (37, 5781275), (61, 3506675), (85, 2516555), (185, 1156255), (223, 959225), (305, 701335), (425, 503311), (629, 340075), (925, 231251), (1037, 206275), (1115, 191845), (1525, 140267), (2257, 94775), (3145, 68015), (3791, 56425), (5185, 41255), (5575, 38369), (8251, 25925), (11285, 18955), (13603, 15725)]