1554020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 3622080

約数和(自身を除く): 2068060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 139, 172, 215, 260, 278, 430, 556, 559, 695, 860, 1118, 1390, 1807, 2236, 2780, 2795, 3614, 5590, 5977, 7228, 9035, 11180, 11954, 18070, 23908, 29885, 36140, 59770, 77701, 119540, 155402, 310804, 388505, 777010, 1554020]

約数ペア:

[(1, 1554020), (2, 777010), (4, 388505), (5, 310804), (10, 155402), (13, 119540), (20, 77701), (26, 59770), (43, 36140), (52, 29885), (65, 23908), (86, 18070), (130, 11954), (139, 11180), (172, 9035), (215, 7228), (260, 5977), (278, 5590), (430, 3614), (556, 2795), (559, 2780), (695, 2236), (860, 1807), (1118, 1390)]