78337140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^2$

素因数の和:198

約数の個数: 144

約数和(自身を含む): 261131136

約数和(自身を除く): 182793996

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 60, 70, 71, 74, 84, 105, 111, 140, 142, 148, 185, 210, 213, 222, 259, 284, 355, 370, 420, 426, 444, 497, 518, 555, 710, 740, 777, 852, 994, 1036, 1065, 1110, 1295, 1420, 1491, 1554, 1988, 2130, 2220, 2485, 2590, 2627, 2982, 3108, 3885, 4260, 4970, 5041, 5180, 5254, 5964, 7455, 7770, 7881, 9940, 10082, 10508, 13135, 14910, 15123, 15540, 15762, 18389, 20164, 25205, 26270, 29820, 30246, 31524, 35287, 36778, 39405, 50410, 52540, 55167, 60492, 70574, 73556, 75615, 78810, 91945, 100820, 105861, 110334, 141148, 151230, 157620, 176435, 183890, 186517, 211722, 220668, 275835, 302460, 352870, 367780, 373034, 423444, 529305, 551670, 559551, 705740, 746068, 932585, 1058610, 1103340, 1119102, 1305619, 1865170, 2117220, 2238204, 2611238, 2797755, 3730340, 3916857, 5222476, 5595510, 6528095, 7833714, 11191020, 13056190, 15667428, 19584285, 26112380, 39168570, 78337140]

約数ペア:

[(1, 78337140), (2, 39168570), (3, 26112380), (4, 19584285), (5, 15667428), (6, 13056190), (7, 11191020), (10, 7833714), (12, 6528095), (14, 5595510), (15, 5222476), (20, 3916857), (21, 3730340), (28, 2797755), (30, 2611238), (35, 2238204), (37, 2117220), (42, 1865170), (60, 1305619), (70, 1119102), (71, 1103340), (74, 1058610), (84, 932585), (105, 746068), (111, 705740), (140, 559551), (142, 551670), (148, 529305), (185, 423444), (210, 373034), (213, 367780), (222, 352870), (259, 302460), (284, 275835), (355, 220668), (370, 211722), (420, 186517), (426, 183890), (444, 176435), (497, 157620), (518, 151230), (555, 141148), (710, 110334), (740, 105861), (777, 100820), (852, 91945), (994, 78810), (1036, 75615), (1065, 73556), (1110, 70574), (1295, 60492), (1420, 55167), (1491, 52540), (1554, 50410), (1988, 39405), (2130, 36778), (2220, 35287), (2485, 31524), (2590, 30246), (2627, 29820), (2982, 26270), (3108, 25205), (3885, 20164), (4260, 18389), (4970, 15762), (5041, 15540), (5180, 15123), (5254, 14910), (5964, 13135), (7455, 10508), (7770, 10082), (7881, 9940)]