69947990

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{20393}}^1$

素因数の和:20421

約数の個数: 32

約数和(自身を含む): 146836800

約数和(自身を除く): 76888810

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 20393, 40786, 101965, 142751, 203930, 285502, 713755, 999257, 1427510, 1998514, 4996285, 6994799, 9992570, 13989598, 34973995, 69947990]

約数ペア:

[(1, 69947990), (2, 34973995), (5, 13989598), (7, 9992570), (10, 6994799), (14, 4996285), (35, 1998514), (49, 1427510), (70, 999257), (98, 713755), (245, 285502), (343, 203930), (490, 142751), (686, 101965), (1715, 40786), (3430, 20393)]