138918880

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{45697}}^1$

素因数の和:45731

約数の個数: 48

約数和(自身を含む): 345476880

約数和(自身を除く): 206558000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 45697, 91394, 182788, 228485, 365576, 456970, 731152, 868243, 913940, 1462304, 1736486, 1827880, 3472972, 3655760, 4341215, 6945944, 7311520, 8682430, 13891888, 17364860, 27783776, 34729720, 69459440, 138918880]

約数ペア:

[(1, 138918880), (2, 69459440), (4, 34729720), (5, 27783776), (8, 17364860), (10, 13891888), (16, 8682430), (19, 7311520), (20, 6945944), (32, 4341215), (38, 3655760), (40, 3472972), (76, 1827880), (80, 1736486), (95, 1462304), (152, 913940), (160, 868243), (190, 731152), (304, 456970), (380, 365576), (608, 228485), (760, 182788), (1520, 91394), (3040, 45697)]