18655700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{919}}^1$

素因数の和:969

約数の個数: 72

約数和(自身を含む): 47913600

約数和(自身を除く): 29257900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 29, 35, 50, 58, 70, 100, 116, 140, 145, 175, 203, 290, 350, 406, 580, 700, 725, 812, 919, 1015, 1450, 1838, 2030, 2900, 3676, 4060, 4595, 5075, 6433, 9190, 10150, 12866, 18380, 20300, 22975, 25732, 26651, 32165, 45950, 53302, 64330, 91900, 106604, 128660, 133255, 160825, 186557, 266510, 321650, 373114, 533020, 643300, 666275, 746228, 932785, 1332550, 1865570, 2665100, 3731140, 4663925, 9327850, 18655700]

約数ペア:

[(1, 18655700), (2, 9327850), (4, 4663925), (5, 3731140), (7, 2665100), (10, 1865570), (14, 1332550), (20, 932785), (25, 746228), (28, 666275), (29, 643300), (35, 533020), (50, 373114), (58, 321650), (70, 266510), (100, 186557), (116, 160825), (140, 133255), (145, 128660), (175, 106604), (203, 91900), (290, 64330), (350, 53302), (406, 45950), (580, 32165), (700, 26651), (725, 25732), (812, 22975), (919, 20300), (1015, 18380), (1450, 12866), (1838, 10150), (2030, 9190), (2900, 6433), (3676, 5075), (4060, 4595)]