72196640

素因数分解:

$2^5\times 5^1\times {\mathrm{491}}^1\times {\mathrm{919}}^1$

素因数の和:1425

約数の個数: 48

約数和(自身を含む): 171097920

約数和(自身を除く): 98901280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 491, 919, 982, 1838, 1964, 2455, 3676, 3928, 4595, 4910, 7352, 7856, 9190, 9820, 14704, 15712, 18380, 19640, 29408, 36760, 39280, 73520, 78560, 147040, 451229, 902458, 1804916, 2256145, 3609832, 4512290, 7219664, 9024580, 14439328, 18049160, 36098320, 72196640]

約数ペア:

[(1, 72196640), (2, 36098320), (4, 18049160), (5, 14439328), (8, 9024580), (10, 7219664), (16, 4512290), (20, 3609832), (32, 2256145), (40, 1804916), (80, 902458), (160, 451229), (491, 147040), (919, 78560), (982, 73520), (1838, 39280), (1964, 36760), (2455, 29408), (3676, 19640), (3928, 18380), (4595, 15712), (4910, 14704), (7352, 9820), (7856, 9190)]