1291265890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{487}}^1$

素因数の和:787

約数の個数: 64

約数和(自身を含む): 2479196160

約数和(自身を除く): 1187930270

約数列:

[1, 2, 5, 10, 29, 41, 58, 82, 145, 205, 223, 290, 410, 446, 487, 974, 1115, 1189, 2230, 2378, 2435, 4870, 5945, 6467, 9143, 11890, 12934, 14123, 18286, 19967, 28246, 32335, 39934, 45715, 64670, 70615, 91430, 99835, 108601, 141230, 199670, 217202, 265147, 530294, 543005, 579043, 1086010, 1158086, 1325735, 2651470, 2895215, 3149429, 4452641, 5790430, 6298858, 8905282, 15747145, 22263205, 31494290, 44526410, 129126589, 258253178, 645632945, 1291265890]

約数ペア:

[(1, 1291265890), (2, 645632945), (5, 258253178), (10, 129126589), (29, 44526410), (41, 31494290), (58, 22263205), (82, 15747145), (145, 8905282), (205, 6298858), (223, 5790430), (290, 4452641), (410, 3149429), (446, 2895215), (487, 2651470), (974, 1325735), (1115, 1158086), (1189, 1086010), (2230, 579043), (2378, 543005), (2435, 530294), (4870, 265147), (5945, 217202), (6467, 199670), (9143, 141230), (11890, 108601), (12934, 99835), (14123, 91430), (18286, 70615), (19967, 64670), (28246, 45715), (32335, 39934)]