31378095

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:173

約数の個数: 96

約数和(自身を含む): 66852864

約数和(自身を除く): 35474769

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 61, 63, 69, 71, 105, 115, 161, 183, 207, 213, 305, 315, 345, 355, 427, 483, 497, 549, 639, 805, 915, 1035, 1065, 1281, 1403, 1449, 1491, 1633, 2135, 2415, 2485, 2745, 3195, 3843, 4209, 4331, 4473, 4899, 6405, 7015, 7245, 7455, 8165, 9821, 11431, 12627, 12993, 14697, 19215, 21045, 21655, 22365, 24495, 29463, 30317, 34293, 38979, 49105, 57155, 63135, 64965, 73485, 88389, 90951, 99613, 102879, 147315, 151585, 171465, 194895, 272853, 298839, 441945, 454755, 498065, 514395, 697291, 896517, 1364265, 1494195, 2091873, 3486455, 4482585, 6275619, 10459365, 31378095]

約数ペア:

[(1, 31378095), (3, 10459365), (5, 6275619), (7, 4482585), (9, 3486455), (15, 2091873), (21, 1494195), (23, 1364265), (35, 896517), (45, 697291), (61, 514395), (63, 498065), (69, 454755), (71, 441945), (105, 298839), (115, 272853), (161, 194895), (183, 171465), (207, 151585), (213, 147315), (305, 102879), (315, 99613), (345, 90951), (355, 88389), (427, 73485), (483, 64965), (497, 63135), (549, 57155), (639, 49105), (805, 38979), (915, 34293), (1035, 30317), (1065, 29463), (1281, 24495), (1403, 22365), (1449, 21655), (1491, 21045), (1633, 19215), (2135, 14697), (2415, 12993), (2485, 12627), (2745, 11431), (3195, 9821), (3843, 8165), (4209, 7455), (4331, 7245), (4473, 7015), (4899, 6405)]