19917100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{769}}^1$

素因数の和:827

約数の個数: 72

約数和(自身を含む): 50795360

約数和(自身を除く): 30878260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 37, 50, 70, 74, 100, 140, 148, 175, 185, 259, 350, 370, 518, 700, 740, 769, 925, 1036, 1295, 1538, 1850, 2590, 3076, 3700, 3845, 5180, 5383, 6475, 7690, 10766, 12950, 15380, 19225, 21532, 25900, 26915, 28453, 38450, 53830, 56906, 76900, 107660, 113812, 134575, 142265, 199171, 269150, 284530, 398342, 538300, 569060, 711325, 796684, 995855, 1422650, 1991710, 2845300, 3983420, 4979275, 9958550, 19917100]

約数ペア:

[(1, 19917100), (2, 9958550), (4, 4979275), (5, 3983420), (7, 2845300), (10, 1991710), (14, 1422650), (20, 995855), (25, 796684), (28, 711325), (35, 569060), (37, 538300), (50, 398342), (70, 284530), (74, 269150), (100, 199171), (140, 142265), (148, 134575), (175, 113812), (185, 107660), (259, 76900), (350, 56906), (370, 53830), (518, 38450), (700, 28453), (740, 26915), (769, 25900), (925, 21532), (1036, 19225), (1295, 15380), (1538, 12950), (1850, 10766), (2590, 7690), (3076, 6475), (3700, 5383), (3845, 5180)]