18536440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{829}}^1$

素因数の和:896

約数の個数: 64

約数和(自身を含む): 46015200

約数和(自身を除く): 27478760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 520, 559, 829, 860, 1118, 1658, 1720, 2236, 2795, 3316, 4145, 4472, 5590, 6632, 8290, 10777, 11180, 16580, 21554, 22360, 33160, 35647, 43108, 53885, 71294, 86216, 107770, 142588, 178235, 215540, 285176, 356470, 431080, 463411, 712940, 926822, 1425880, 1853644, 2317055, 3707288, 4634110, 9268220, 18536440]

約数ペア:

[(1, 18536440), (2, 9268220), (4, 4634110), (5, 3707288), (8, 2317055), (10, 1853644), (13, 1425880), (20, 926822), (26, 712940), (40, 463411), (43, 431080), (52, 356470), (65, 285176), (86, 215540), (104, 178235), (130, 142588), (172, 107770), (215, 86216), (260, 71294), (344, 53885), (430, 43108), (520, 35647), (559, 33160), (829, 22360), (860, 21554), (1118, 16580), (1658, 11180), (1720, 10777), (2236, 8290), (2795, 6632), (3316, 5590), (4145, 4472)]