81420360

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:316

約数の個数: 192

約数和(自身を含む): 290070720

約数和(自身を除く): 208650360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 61, 70, 84, 98, 105, 120, 122, 140, 147, 168, 183, 196, 210, 227, 244, 245, 280, 294, 305, 366, 392, 420, 427, 454, 488, 490, 588, 610, 681, 732, 735, 840, 854, 908, 915, 980, 1135, 1176, 1220, 1281, 1362, 1464, 1470, 1589, 1708, 1816, 1830, 1960, 2135, 2270, 2440, 2562, 2724, 2940, 2989, 3178, 3405, 3416, 3660, 4270, 4540, 4767, 5124, 5448, 5880, 5978, 6356, 6405, 6810, 7320, 7945, 8540, 8967, 9080, 9534, 10248, 11123, 11956, 12712, 12810, 13620, 13847, 14945, 15890, 17080, 17934, 19068, 22246, 23835, 23912, 25620, 27240, 27694, 29890, 31780, 33369, 35868, 38136, 41541, 44492, 44835, 47670, 51240, 55388, 55615, 59780, 63560, 66738, 69235, 71736, 83082, 88984, 89670, 95340, 96929, 110776, 111230, 119560, 133476, 138470, 166164, 166845, 179340, 190680, 193858, 207705, 222460, 266952, 276940, 290787, 332328, 333690, 358680, 387716, 415410, 444920, 484645, 553880, 581574, 667380, 678503, 775432, 830820, 969290, 1163148, 1334760, 1357006, 1453935, 1661640, 1938580, 2035509, 2326296, 2714012, 2907870, 3392515, 3877160, 4071018, 5428024, 5815740, 6785030, 8142036, 10177545, 11631480, 13570060, 16284072, 20355090, 27140120, 40710180, 81420360]

約数ペア:

[(1, 81420360), (2, 40710180), (3, 27140120), (4, 20355090), (5, 16284072), (6, 13570060), (7, 11631480), (8, 10177545), (10, 8142036), (12, 6785030), (14, 5815740), (15, 5428024), (20, 4071018), (21, 3877160), (24, 3392515), (28, 2907870), (30, 2714012), (35, 2326296), (40, 2035509), (42, 1938580), (49, 1661640), (56, 1453935), (60, 1357006), (61, 1334760), (70, 1163148), (84, 969290), (98, 830820), (105, 775432), (120, 678503), (122, 667380), (140, 581574), (147, 553880), (168, 484645), (183, 444920), (196, 415410), (210, 387716), (227, 358680), (244, 333690), (245, 332328), (280, 290787), (294, 276940), (305, 266952), (366, 222460), (392, 207705), (420, 193858), (427, 190680), (454, 179340), (488, 166845), (490, 166164), (588, 138470), (610, 133476), (681, 119560), (732, 111230), (735, 110776), (840, 96929), (854, 95340), (908, 89670), (915, 88984), (980, 83082), (1135, 71736), (1176, 69235), (1220, 66738), (1281, 63560), (1362, 59780), (1464, 55615), (1470, 55388), (1589, 51240), (1708, 47670), (1816, 44835), (1830, 44492), (1960, 41541), (2135, 38136), (2270, 35868), (2440, 33369), (2562, 31780), (2724, 29890), (2940, 27694), (2989, 27240), (3178, 25620), (3405, 23912), (3416, 23835), (3660, 22246), (4270, 19068), (4540, 17934), (4767, 17080), (5124, 15890), (5448, 14945), (5880, 13847), (5978, 13620), (6356, 12810), (6405, 12712), (6810, 11956), (7320, 11123), (7945, 10248), (8540, 9534), (8967, 9080)]