31563140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1721}}^1$

素因数の和:1868

約数の個数: 48

約数和(自身を含む): 76374144

約数和(自身を除く): 44811004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 524, 655, 917, 1310, 1721, 1834, 2620, 3442, 3668, 4585, 6884, 8605, 9170, 12047, 17210, 18340, 24094, 34420, 48188, 60235, 120470, 225451, 240940, 450902, 901804, 1127255, 1578157, 2254510, 3156314, 4509020, 6312628, 7890785, 15781570, 31563140]

約数ペア:

[(1, 31563140), (2, 15781570), (4, 7890785), (5, 6312628), (7, 4509020), (10, 3156314), (14, 2254510), (20, 1578157), (28, 1127255), (35, 901804), (70, 450902), (131, 240940), (140, 225451), (262, 120470), (524, 60235), (655, 48188), (917, 34420), (1310, 24094), (1721, 18340), (1834, 17210), (2620, 12047), (3442, 9170), (3668, 8605), (4585, 6884)]