10821720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{991}}^1$

素因数の和:1025

約数の個数: 128

約数和(自身を含む): 39997440

約数和(自身を除く): 29175720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 991, 1092, 1365, 1560, 1820, 1982, 2184, 2730, 2973, 3640, 3964, 4955, 5460, 5946, 6937, 7928, 9910, 10920, 11892, 12883, 13874, 14865, 19820, 20811, 23784, 25766, 27748, 29730, 34685, 38649, 39640, 41622, 51532, 55496, 59460, 64415, 69370, 77298, 83244, 90181, 103064, 104055, 118920, 128830, 138740, 154596, 166488, 180362, 193245, 208110, 257660, 270543, 277480, 309192, 360724, 386490, 416220, 450905, 515320, 541086, 721448, 772980, 832440, 901810, 1082172, 1352715, 1545960, 1803620, 2164344, 2705430, 3607240, 5410860, 10821720]

約数ペア:

[(1, 10821720), (2, 5410860), (3, 3607240), (4, 2705430), (5, 2164344), (6, 1803620), (7, 1545960), (8, 1352715), (10, 1082172), (12, 901810), (13, 832440), (14, 772980), (15, 721448), (20, 541086), (21, 515320), (24, 450905), (26, 416220), (28, 386490), (30, 360724), (35, 309192), (39, 277480), (40, 270543), (42, 257660), (52, 208110), (56, 193245), (60, 180362), (65, 166488), (70, 154596), (78, 138740), (84, 128830), (91, 118920), (104, 104055), (105, 103064), (120, 90181), (130, 83244), (140, 77298), (156, 69370), (168, 64415), (182, 59460), (195, 55496), (210, 51532), (260, 41622), (273, 39640), (280, 38649), (312, 34685), (364, 29730), (390, 27748), (420, 25766), (455, 23784), (520, 20811), (546, 19820), (728, 14865), (780, 13874), (840, 12883), (910, 11892), (991, 10920), (1092, 9910), (1365, 7928), (1560, 6937), (1820, 5946), (1982, 5460), (2184, 4955), (2730, 3964), (2973, 3640)]