81378480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1607}}^1$

素因数の和:1834

約数の個数: 80

約数和(自身を含む): 253626624

約数和(自身を除く): 172248144

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 211, 240, 422, 633, 844, 1055, 1266, 1607, 1688, 2110, 2532, 3165, 3214, 3376, 4220, 4821, 5064, 6330, 6428, 8035, 8440, 9642, 10128, 12660, 12856, 16070, 16880, 19284, 24105, 25320, 25712, 32140, 38568, 48210, 50640, 64280, 77136, 96420, 128560, 192840, 339077, 385680, 678154, 1017231, 1356308, 1695385, 2034462, 2712616, 3390770, 4068924, 5086155, 5425232, 6781540, 8137848, 10172310, 13563080, 16275696, 20344620, 27126160, 40689240, 81378480]

約数ペア:

[(1, 81378480), (2, 40689240), (3, 27126160), (4, 20344620), (5, 16275696), (6, 13563080), (8, 10172310), (10, 8137848), (12, 6781540), (15, 5425232), (16, 5086155), (20, 4068924), (24, 3390770), (30, 2712616), (40, 2034462), (48, 1695385), (60, 1356308), (80, 1017231), (120, 678154), (211, 385680), (240, 339077), (422, 192840), (633, 128560), (844, 96420), (1055, 77136), (1266, 64280), (1607, 50640), (1688, 48210), (2110, 38568), (2532, 32140), (3165, 25712), (3214, 25320), (3376, 24105), (4220, 19284), (4821, 16880), (5064, 16070), (6330, 12856), (6428, 12660), (8035, 10128), (8440, 9642)]