28488180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67829}}^1$

素因数の和:67848

約数の個数: 48

約数和(自身を含む): 91163520

約数和(自身を除く): 62675340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 67829, 135658, 203487, 271316, 339145, 406974, 474803, 678290, 813948, 949606, 1017435, 1356580, 1424409, 1899212, 2034870, 2374015, 2848818, 4069740, 4748030, 5697636, 7122045, 9496060, 14244090, 28488180]

約数ペア:

[(1, 28488180), (2, 14244090), (3, 9496060), (4, 7122045), (5, 5697636), (6, 4748030), (7, 4069740), (10, 2848818), (12, 2374015), (14, 2034870), (15, 1899212), (20, 1424409), (21, 1356580), (28, 1017435), (30, 949606), (35, 813948), (42, 678290), (60, 474803), (70, 406974), (84, 339145), (105, 271316), (140, 203487), (210, 135658), (420, 67829)]