31818020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2309}}^1$

素因数の和:2384

約数の個数: 48

約数和(自身を含む): 73347120

約数和(自身を除く): 41529100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2309, 2756, 3445, 4618, 6890, 9236, 11545, 13780, 23090, 30017, 46180, 60034, 120068, 122377, 150085, 244754, 300170, 489508, 600340, 611885, 1223770, 1590901, 2447540, 3181802, 6363604, 7954505, 15909010, 31818020]

約数ペア:

[(1, 31818020), (2, 15909010), (4, 7954505), (5, 6363604), (10, 3181802), (13, 2447540), (20, 1590901), (26, 1223770), (52, 611885), (53, 600340), (65, 489508), (106, 300170), (130, 244754), (212, 150085), (260, 122377), (265, 120068), (530, 60034), (689, 46180), (1060, 30017), (1378, 23090), (2309, 13780), (2756, 11545), (3445, 9236), (4618, 6890)]