311391860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{3851}}^1$

素因数の和:4184

約数の個数: 48

約数和(自身を含む): 706672512

約数和(自身を除く): 395280652

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 311, 622, 1244, 1555, 3110, 3851, 4043, 6220, 7702, 8086, 15404, 16172, 19255, 20215, 38510, 40430, 50063, 77020, 80860, 100126, 200252, 250315, 500630, 1001260, 1197661, 2395322, 4790644, 5988305, 11976610, 15569593, 23953220, 31139186, 62278372, 77847965, 155695930, 311391860]

約数ペア:

[(1, 311391860), (2, 155695930), (4, 77847965), (5, 62278372), (10, 31139186), (13, 23953220), (20, 15569593), (26, 11976610), (52, 5988305), (65, 4790644), (130, 2395322), (260, 1197661), (311, 1001260), (622, 500630), (1244, 250315), (1555, 200252), (3110, 100126), (3851, 80860), (4043, 77020), (6220, 50063), (7702, 40430), (8086, 38510), (15404, 20215), (16172, 19255)]