90162920

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{241}}^1$

素因数の和:498

約数の個数: 64

約数和(自身を含む): 209088000

約数和(自身を除く): 118925080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 199, 235, 241, 376, 398, 470, 482, 796, 940, 964, 995, 1205, 1592, 1880, 1928, 1990, 2410, 3980, 4820, 7960, 9353, 9640, 11327, 18706, 22654, 37412, 45308, 46765, 47959, 56635, 74824, 90616, 93530, 95918, 113270, 187060, 191836, 226540, 239795, 374120, 383672, 453080, 479590, 959180, 1918360, 2254073, 4508146, 9016292, 11270365, 18032584, 22540730, 45081460, 90162920]

約数ペア:

[(1, 90162920), (2, 45081460), (4, 22540730), (5, 18032584), (8, 11270365), (10, 9016292), (20, 4508146), (40, 2254073), (47, 1918360), (94, 959180), (188, 479590), (199, 453080), (235, 383672), (241, 374120), (376, 239795), (398, 226540), (470, 191836), (482, 187060), (796, 113270), (940, 95918), (964, 93530), (995, 90616), (1205, 74824), (1592, 56635), (1880, 47959), (1928, 46765), (1990, 45308), (2410, 37412), (3980, 22654), (4820, 18706), (7960, 11327), (9353, 9640)]