12947965

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 17729280

約数和(自身を除く): 4781315

約数列:

[1, 5, 17, 23, 37, 85, 115, 179, 185, 391, 629, 851, 895, 1955, 3043, 3145, 4117, 4255, 6623, 14467, 15215, 20585, 33115, 69989, 72335, 112591, 152329, 349945, 562955, 761645, 2589593, 12947965]

約数ペア:

[(1, 12947965), (5, 2589593), (17, 761645), (23, 562955), (37, 349945), (85, 152329), (115, 112591), (179, 72335), (185, 69989), (391, 33115), (629, 20585), (851, 15215), (895, 14467), (1955, 6623), (3043, 4255), (3145, 4117)]