21960720

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{3389}}^1$

素因数の和:3414

約数の個数: 100

約数和(自身を含む): 76295340

約数和(自身を除く): 54334620

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, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 3389, 6480, 6778, 10167, 13556, 16945, 20334, 27112, 30501, 33890, 40668, 50835, 54224, 61002, 67780, 81336, 91503, 101670, 122004, 135560, 152505, 162672, 183006, 203340, 244008, 271120, 274509, 305010, 366012, 406680, 457515, 488016, 549018, 610020, 732024, 813360, 915030, 1098036, 1220040, 1372545, 1464048, 1830060, 2196072, 2440080, 2745090, 3660120, 4392144, 5490180, 7320240, 10980360, 21960720]

約数ペア:

[(1, 21960720), (2, 10980360), (3, 7320240), (4, 5490180), (5, 4392144), (6, 3660120), (8, 2745090), (9, 2440080), (10, 2196072), (12, 1830060), (15, 1464048), (16, 1372545), (18, 1220040), (20, 1098036), (24, 915030), (27, 813360), (30, 732024), (36, 610020), (40, 549018), (45, 488016), (48, 457515), (54, 406680), (60, 366012), (72, 305010), (80, 274509), (81, 271120), (90, 244008), (108, 203340), (120, 183006), (135, 162672), (144, 152505), (162, 135560), (180, 122004), (216, 101670), (240, 91503), (270, 81336), (324, 67780), (360, 61002), (405, 54224), (432, 50835), (540, 40668), (648, 33890), (720, 30501), (810, 27112), (1080, 20334), (1296, 16945), (1620, 13556), (2160, 10167), (3240, 6778), (3389, 6480)]