31566280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{761}}^1$

素因数の和:850

約数の個数: 64

約数和(自身を含む): 76535280

約数和(自身を除く): 44969000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 68, 85, 122, 136, 170, 244, 305, 340, 488, 610, 680, 761, 1037, 1220, 1522, 2074, 2440, 3044, 3805, 4148, 5185, 6088, 7610, 8296, 10370, 12937, 15220, 20740, 25874, 30440, 41480, 46421, 51748, 64685, 92842, 103496, 129370, 185684, 232105, 258740, 371368, 464210, 517480, 789157, 928420, 1578314, 1856840, 3156628, 3945785, 6313256, 7891570, 15783140, 31566280]

約数ペア:

[(1, 31566280), (2, 15783140), (4, 7891570), (5, 6313256), (8, 3945785), (10, 3156628), (17, 1856840), (20, 1578314), (34, 928420), (40, 789157), (61, 517480), (68, 464210), (85, 371368), (122, 258740), (136, 232105), (170, 185684), (244, 129370), (305, 103496), (340, 92842), (488, 64685), (610, 51748), (680, 46421), (761, 41480), (1037, 30440), (1220, 25874), (1522, 20740), (2074, 15220), (2440, 12937), (3044, 10370), (3805, 8296), (4148, 7610), (5185, 6088)]