18978510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20407}}^1$

素因数の和:20448

約数の個数: 32

約数和(自身を含む): 47020032

約数和(自身を除く): 28041522

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 930, 20407, 40814, 61221, 102035, 122442, 204070, 306105, 612210, 632617, 1265234, 1897851, 3163085, 3795702, 6326170, 9489255, 18978510]

約数ペア:

[(1, 18978510), (2, 9489255), (3, 6326170), (5, 3795702), (6, 3163085), (10, 1897851), (15, 1265234), (30, 632617), (31, 612210), (62, 306105), (93, 204070), (155, 122442), (186, 102035), (310, 61221), (465, 40814), (930, 20407)]