281091720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{25741}}^1$

素因数の和:25775

約数の個数: 128

約数和(自身を含む): 1037917440

約数和(自身を除く): 756825720

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, 1092, 1365, 1560, 1820, 2184, 2730, 3640, 5460, 10920, 25741, 51482, 77223, 102964, 128705, 154446, 180187, 205928, 257410, 308892, 334633, 360374, 386115, 514820, 540561, 617784, 669266, 720748, 772230, 900935, 1003899, 1029640, 1081122, 1338532, 1441496, 1544460, 1673165, 1801870, 2007798, 2162244, 2342431, 2677064, 2702805, 3088920, 3346330, 3603740, 4015596, 4324488, 4684862, 5019495, 5405610, 6692660, 7027293, 7207480, 8031192, 9369724, 10038990, 10811220, 11712155, 13385320, 14054586, 18739448, 20077980, 21622440, 23424310, 28109172, 35136465, 40155960, 46848620, 56218344, 70272930, 93697240, 140545860, 281091720]

約数ペア:

[(1, 281091720), (2, 140545860), (3, 93697240), (4, 70272930), (5, 56218344), (6, 46848620), (7, 40155960), (8, 35136465), (10, 28109172), (12, 23424310), (13, 21622440), (14, 20077980), (15, 18739448), (20, 14054586), (21, 13385320), (24, 11712155), (26, 10811220), (28, 10038990), (30, 9369724), (35, 8031192), (39, 7207480), (40, 7027293), (42, 6692660), (52, 5405610), (56, 5019495), (60, 4684862), (65, 4324488), (70, 4015596), (78, 3603740), (84, 3346330), (91, 3088920), (104, 2702805), (105, 2677064), (120, 2342431), (130, 2162244), (140, 2007798), (156, 1801870), (168, 1673165), (182, 1544460), (195, 1441496), (210, 1338532), (260, 1081122), (273, 1029640), (280, 1003899), (312, 900935), (364, 772230), (390, 720748), (420, 669266), (455, 617784), (520, 540561), (546, 514820), (728, 386115), (780, 360374), (840, 334633), (910, 308892), (1092, 257410), (1365, 205928), (1560, 180187), (1820, 154446), (2184, 128705), (2730, 102964), (3640, 77223), (5460, 51482), (10920, 25741)]