21990960

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{10181}}^1$

素因数の和:10203

約数の個数: 80

約数和(自身を含む): 75754080

約数和(自身を除く): 53763120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 10181, 20362, 30543, 40724, 50905, 61086, 81448, 91629, 101810, 122172, 152715, 162896, 183258, 203620, 244344, 274887, 305430, 366516, 407240, 458145, 488688, 549774, 610860, 733032, 814480, 916290, 1099548, 1221720, 1374435, 1466064, 1832580, 2199096, 2443440, 2748870, 3665160, 4398192, 5497740, 7330320, 10995480, 21990960]

約数ペア:

[(1, 21990960), (2, 10995480), (3, 7330320), (4, 5497740), (5, 4398192), (6, 3665160), (8, 2748870), (9, 2443440), (10, 2199096), (12, 1832580), (15, 1466064), (16, 1374435), (18, 1221720), (20, 1099548), (24, 916290), (27, 814480), (30, 733032), (36, 610860), (40, 549774), (45, 488688), (48, 458145), (54, 407240), (60, 366516), (72, 305430), (80, 274887), (90, 244344), (108, 203620), (120, 183258), (135, 162896), (144, 152715), (180, 122172), (216, 101810), (240, 91629), (270, 81448), (360, 61086), (432, 50905), (540, 40724), (720, 30543), (1080, 20362), (2160, 10181)]