31161748

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 61689600

約数和(自身を除く): 30527852

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 89, 178, 271, 323, 356, 542, 646, 1084, 1292, 1513, 1691, 3026, 3382, 4607, 5149, 6052, 6764, 9214, 10298, 18428, 20596, 24119, 28747, 48238, 57494, 87533, 96476, 114988, 175066, 350132, 410023, 458261, 820046, 916522, 1640092, 1833044, 7790437, 15580874, 31161748]

約数ペア:

[(1, 31161748), (2, 15580874), (4, 7790437), (17, 1833044), (19, 1640092), (34, 916522), (38, 820046), (68, 458261), (76, 410023), (89, 350132), (178, 175066), (271, 114988), (323, 96476), (356, 87533), (542, 57494), (646, 48238), (1084, 28747), (1292, 24119), (1513, 20596), (1691, 18428), (3026, 10298), (3382, 9214), (4607, 6764), (5149, 6052)]