85271900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1997}}^1$

素因数の和:2079

約数の個数: 72

約数和(自身を含む): 215048736

約数和(自身を除く): 129776836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 61, 70, 100, 122, 140, 175, 244, 305, 350, 427, 610, 700, 854, 1220, 1525, 1708, 1997, 2135, 3050, 3994, 4270, 6100, 7988, 8540, 9985, 10675, 13979, 19970, 21350, 27958, 39940, 42700, 49925, 55916, 69895, 99850, 121817, 139790, 199700, 243634, 279580, 349475, 487268, 609085, 698950, 852719, 1218170, 1397900, 1705438, 2436340, 3045425, 3410876, 4263595, 6090850, 8527190, 12181700, 17054380, 21317975, 42635950, 85271900]

約数ペア:

[(1, 85271900), (2, 42635950), (4, 21317975), (5, 17054380), (7, 12181700), (10, 8527190), (14, 6090850), (20, 4263595), (25, 3410876), (28, 3045425), (35, 2436340), (50, 1705438), (61, 1397900), (70, 1218170), (100, 852719), (122, 698950), (140, 609085), (175, 487268), (244, 349475), (305, 279580), (350, 243634), (427, 199700), (610, 139790), (700, 121817), (854, 99850), (1220, 69895), (1525, 55916), (1708, 49925), (1997, 42700), (2135, 39940), (3050, 27958), (3994, 21350), (4270, 19970), (6100, 13979), (7988, 10675), (8540, 9985)]