2780340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 7862400

約数和(自身を除く): 5082060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 149, 298, 311, 447, 596, 622, 745, 894, 933, 1244, 1490, 1555, 1788, 1866, 2235, 2980, 3110, 3732, 4470, 4665, 6220, 8940, 9330, 18660, 46339, 92678, 139017, 185356, 231695, 278034, 463390, 556068, 695085, 926780, 1390170, 2780340]

約数ペア:

[(1, 2780340), (2, 1390170), (3, 926780), (4, 695085), (5, 556068), (6, 463390), (10, 278034), (12, 231695), (15, 185356), (20, 139017), (30, 92678), (60, 46339), (149, 18660), (298, 9330), (311, 8940), (447, 6220), (596, 4665), (622, 4470), (745, 3732), (894, 3110), (933, 2980), (1244, 2235), (1490, 1866), (1555, 1788)]