87420720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^2\times {\mathrm{197}}^1$

素因数の和:299

約数の個数: 120

約数和(自身を含む): 278861616

約数和(自身を除く): 191440896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 60, 80, 86, 120, 129, 172, 197, 215, 240, 258, 344, 394, 430, 516, 591, 645, 688, 788, 860, 985, 1032, 1182, 1290, 1576, 1720, 1849, 1970, 2064, 2364, 2580, 2955, 3152, 3440, 3698, 3940, 4728, 5160, 5547, 5910, 7396, 7880, 8471, 9245, 9456, 10320, 11094, 11820, 14792, 15760, 16942, 18490, 22188, 23640, 25413, 27735, 29584, 33884, 36980, 42355, 44376, 47280, 50826, 55470, 67768, 73960, 84710, 88752, 101652, 110940, 127065, 135536, 147920, 169420, 203304, 221880, 254130, 338840, 364253, 406608, 443760, 508260, 677680, 728506, 1016520, 1092759, 1457012, 1821265, 2033040, 2185518, 2914024, 3642530, 4371036, 5463795, 5828048, 7285060, 8742072, 10927590, 14570120, 17484144, 21855180, 29140240, 43710360, 87420720]

約数ペア:

[(1, 87420720), (2, 43710360), (3, 29140240), (4, 21855180), (5, 17484144), (6, 14570120), (8, 10927590), (10, 8742072), (12, 7285060), (15, 5828048), (16, 5463795), (20, 4371036), (24, 3642530), (30, 2914024), (40, 2185518), (43, 2033040), (48, 1821265), (60, 1457012), (80, 1092759), (86, 1016520), (120, 728506), (129, 677680), (172, 508260), (197, 443760), (215, 406608), (240, 364253), (258, 338840), (344, 254130), (394, 221880), (430, 203304), (516, 169420), (591, 147920), (645, 135536), (688, 127065), (788, 110940), (860, 101652), (985, 88752), (1032, 84710), (1182, 73960), (1290, 67768), (1576, 55470), (1720, 50826), (1849, 47280), (1970, 44376), (2064, 42355), (2364, 36980), (2580, 33884), (2955, 29584), (3152, 27735), (3440, 25413), (3698, 23640), (3940, 22188), (4728, 18490), (5160, 16942), (5547, 15760), (5910, 14792), (7396, 11820), (7880, 11094), (8471, 10320), (9245, 9456)]