78217860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:194

約数の個数: 192

約数和(自身を含む): 263983104

約数和(自身を除く): 185765244

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 60, 61, 70, 71, 84, 86, 105, 122, 129, 140, 142, 172, 183, 210, 213, 215, 244, 258, 284, 301, 305, 355, 366, 420, 426, 427, 430, 497, 516, 602, 610, 645, 710, 732, 852, 854, 860, 903, 915, 994, 1065, 1204, 1220, 1281, 1290, 1420, 1491, 1505, 1708, 1806, 1830, 1988, 2130, 2135, 2485, 2562, 2580, 2623, 2982, 3010, 3053, 3612, 3660, 4260, 4270, 4331, 4515, 4970, 5124, 5246, 5964, 6020, 6106, 6405, 7455, 7869, 8540, 8662, 9030, 9159, 9940, 10492, 12212, 12810, 12993, 13115, 14910, 15265, 15738, 17324, 18060, 18318, 18361, 21371, 21655, 25620, 25986, 26230, 29820, 30317, 30530, 31476, 36636, 36722, 39345, 42742, 43310, 45795, 51972, 52460, 55083, 60634, 61060, 64113, 64965, 73444, 78690, 85484, 86620, 90951, 91590, 91805, 106855, 110166, 121268, 128226, 129930, 151585, 157380, 181902, 183180, 183610, 186233, 213710, 220332, 256452, 259860, 275415, 303170, 320565, 363804, 367220, 372466, 427420, 454755, 550830, 558699, 606340, 641130, 744932, 909510, 931165, 1101660, 1117398, 1282260, 1303631, 1819020, 1862330, 2234796, 2607262, 2793495, 3724660, 3910893, 5214524, 5586990, 6518155, 7821786, 11173980, 13036310, 15643572, 19554465, 26072620, 39108930, 78217860]

約数ペア:

[(1, 78217860), (2, 39108930), (3, 26072620), (4, 19554465), (5, 15643572), (6, 13036310), (7, 11173980), (10, 7821786), (12, 6518155), (14, 5586990), (15, 5214524), (20, 3910893), (21, 3724660), (28, 2793495), (30, 2607262), (35, 2234796), (42, 1862330), (43, 1819020), (60, 1303631), (61, 1282260), (70, 1117398), (71, 1101660), (84, 931165), (86, 909510), (105, 744932), (122, 641130), (129, 606340), (140, 558699), (142, 550830), (172, 454755), (183, 427420), (210, 372466), (213, 367220), (215, 363804), (244, 320565), (258, 303170), (284, 275415), (301, 259860), (305, 256452), (355, 220332), (366, 213710), (420, 186233), (426, 183610), (427, 183180), (430, 181902), (497, 157380), (516, 151585), (602, 129930), (610, 128226), (645, 121268), (710, 110166), (732, 106855), (852, 91805), (854, 91590), (860, 90951), (903, 86620), (915, 85484), (994, 78690), (1065, 73444), (1204, 64965), (1220, 64113), (1281, 61060), (1290, 60634), (1420, 55083), (1491, 52460), (1505, 51972), (1708, 45795), (1806, 43310), (1830, 42742), (1988, 39345), (2130, 36722), (2135, 36636), (2485, 31476), (2562, 30530), (2580, 30317), (2623, 29820), (2982, 26230), (3010, 25986), (3053, 25620), (3612, 21655), (3660, 21371), (4260, 18361), (4270, 18318), (4331, 18060), (4515, 17324), (4970, 15738), (5124, 15265), (5246, 14910), (5964, 13115), (6020, 12993), (6106, 12810), (6405, 12212), (7455, 10492), (7869, 9940), (8540, 9159), (8662, 9030)]