281208720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{467}}^1$

素因数の和:689

約数の個数: 160

約数和(自身を含む): 945689472

約数和(自身を除く): 664480752

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 193, 195, 208, 240, 260, 312, 386, 390, 467, 520, 579, 624, 772, 780, 934, 965, 1040, 1158, 1401, 1544, 1560, 1868, 1930, 2316, 2335, 2509, 2802, 2895, 3088, 3120, 3736, 3860, 4632, 4670, 5018, 5604, 5790, 6071, 7005, 7472, 7527, 7720, 9264, 9340, 10036, 11208, 11580, 12142, 12545, 14010, 15054, 15440, 18213, 18680, 20072, 22416, 23160, 24284, 25090, 28020, 30108, 30355, 36426, 37360, 37635, 40144, 46320, 48568, 50180, 56040, 60216, 60710, 72852, 75270, 90131, 91065, 97136, 100360, 112080, 120432, 121420, 145704, 150540, 180262, 182130, 200720, 242840, 270393, 291408, 301080, 360524, 364260, 450655, 485680, 540786, 602160, 721048, 728520, 901310, 1081572, 1171703, 1351965, 1442096, 1457040, 1802620, 2163144, 2343406, 2703930, 3515109, 3605240, 4326288, 4686812, 5407860, 5858515, 7030218, 7210480, 9373624, 10815720, 11717030, 14060436, 17575545, 18747248, 21631440, 23434060, 28120872, 35151090, 46868120, 56241744, 70302180, 93736240, 140604360, 281208720]

約数ペア:

[(1, 281208720), (2, 140604360), (3, 93736240), (4, 70302180), (5, 56241744), (6, 46868120), (8, 35151090), (10, 28120872), (12, 23434060), (13, 21631440), (15, 18747248), (16, 17575545), (20, 14060436), (24, 11717030), (26, 10815720), (30, 9373624), (39, 7210480), (40, 7030218), (48, 5858515), (52, 5407860), (60, 4686812), (65, 4326288), (78, 3605240), (80, 3515109), (104, 2703930), (120, 2343406), (130, 2163144), (156, 1802620), (193, 1457040), (195, 1442096), (208, 1351965), (240, 1171703), (260, 1081572), (312, 901310), (386, 728520), (390, 721048), (467, 602160), (520, 540786), (579, 485680), (624, 450655), (772, 364260), (780, 360524), (934, 301080), (965, 291408), (1040, 270393), (1158, 242840), (1401, 200720), (1544, 182130), (1560, 180262), (1868, 150540), (1930, 145704), (2316, 121420), (2335, 120432), (2509, 112080), (2802, 100360), (2895, 97136), (3088, 91065), (3120, 90131), (3736, 75270), (3860, 72852), (4632, 60710), (4670, 60216), (5018, 56040), (5604, 50180), (5790, 48568), (6071, 46320), (7005, 40144), (7472, 37635), (7527, 37360), (7720, 36426), (9264, 30355), (9340, 30108), (10036, 28020), (11208, 25090), (11580, 24284), (12142, 23160), (12545, 22416), (14010, 20072), (15054, 18680), (15440, 18213)]