31436680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1931}}^1$

素因数の和:1990

約数の個数: 64

約数和(自身を含む): 79289280

約数和(自身を除く): 47852600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 740, 814, 1480, 1628, 1931, 2035, 3256, 3862, 4070, 7724, 8140, 9655, 15448, 16280, 19310, 21241, 38620, 42482, 71447, 77240, 84964, 106205, 142894, 169928, 212410, 285788, 357235, 424820, 571576, 714470, 785917, 849640, 1428940, 1571834, 2857880, 3143668, 3929585, 6287336, 7859170, 15718340, 31436680]

約数ペア:

[(1, 31436680), (2, 15718340), (4, 7859170), (5, 6287336), (8, 3929585), (10, 3143668), (11, 2857880), (20, 1571834), (22, 1428940), (37, 849640), (40, 785917), (44, 714470), (55, 571576), (74, 424820), (88, 357235), (110, 285788), (148, 212410), (185, 169928), (220, 142894), (296, 106205), (370, 84964), (407, 77240), (440, 71447), (740, 42482), (814, 38620), (1480, 21241), (1628, 19310), (1931, 16280), (2035, 15448), (3256, 9655), (3862, 8140), (4070, 7724)]