28476420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67801}}^1$

素因数の和:67820

約数の個数: 48

約数和(自身を含む): 91125888

約数和(自身を除く): 62649468

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, 67801, 135602, 203403, 271204, 339005, 406806, 474607, 678010, 813612, 949214, 1017015, 1356020, 1423821, 1898428, 2034030, 2373035, 2847642, 4068060, 4746070, 5695284, 7119105, 9492140, 14238210, 28476420]

約数ペア:

[(1, 28476420), (2, 14238210), (3, 9492140), (4, 7119105), (5, 5695284), (6, 4746070), (7, 4068060), (10, 2847642), (12, 2373035), (14, 2034030), (15, 1898428), (20, 1423821), (21, 1356020), (28, 1017015), (30, 949214), (35, 813612), (42, 678010), (60, 474607), (70, 406806), (84, 339005), (105, 271204), (140, 203403), (210, 135602), (420, 67801)]