28239340

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{293}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 61246080

約数和(自身を除く): 33006740

約数列:

[1, 2, 4, 5, 10, 20, 61, 79, 122, 158, 244, 293, 305, 316, 395, 586, 610, 790, 1172, 1220, 1465, 1580, 2930, 4819, 5860, 9638, 17873, 19276, 23147, 24095, 35746, 46294, 48190, 71492, 89365, 92588, 96380, 115735, 178730, 231470, 357460, 462940, 1411967, 2823934, 5647868, 7059835, 14119670, 28239340]

約数ペア:

[(1, 28239340), (2, 14119670), (4, 7059835), (5, 5647868), (10, 2823934), (20, 1411967), (61, 462940), (79, 357460), (122, 231470), (158, 178730), (244, 115735), (293, 96380), (305, 92588), (316, 89365), (395, 71492), (586, 48190), (610, 46294), (790, 35746), (1172, 24095), (1220, 23147), (1465, 19276), (1580, 17873), (2930, 9638), (4819, 5860)]