80778780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4357}}^1$

素因数の和:4475

約数の個数: 72

約数和(自身を含む): 247464672

約数和(自身を除く): 166685892

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 103, 180, 206, 309, 412, 515, 618, 927, 1030, 1236, 1545, 1854, 2060, 3090, 3708, 4357, 4635, 6180, 8714, 9270, 13071, 17428, 18540, 21785, 26142, 39213, 43570, 52284, 65355, 78426, 87140, 130710, 156852, 196065, 261420, 392130, 448771, 784260, 897542, 1346313, 1795084, 2243855, 2692626, 4038939, 4487710, 5385252, 6731565, 8077878, 8975420, 13463130, 16155756, 20194695, 26926260, 40389390, 80778780]

約数ペア:

[(1, 80778780), (2, 40389390), (3, 26926260), (4, 20194695), (5, 16155756), (6, 13463130), (9, 8975420), (10, 8077878), (12, 6731565), (15, 5385252), (18, 4487710), (20, 4038939), (30, 2692626), (36, 2243855), (45, 1795084), (60, 1346313), (90, 897542), (103, 784260), (180, 448771), (206, 392130), (309, 261420), (412, 196065), (515, 156852), (618, 130710), (927, 87140), (1030, 78426), (1236, 65355), (1545, 52284), (1854, 43570), (2060, 39213), (3090, 26142), (3708, 21785), (4357, 18540), (4635, 17428), (6180, 13071), (8714, 9270)]