28595980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1301}}^1$

素因数の和:1474

約数の個数: 48

約数和(自身を含む): 69120576

約数和(自身を除く): 40524596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1301, 1570, 2198, 2602, 3140, 4396, 5204, 5495, 6505, 9107, 10990, 13010, 18214, 21980, 26020, 36428, 45535, 91070, 182140, 204257, 408514, 817028, 1021285, 1429799, 2042570, 2859598, 4085140, 5719196, 7148995, 14297990, 28595980]

約数ペア:

[(1, 28595980), (2, 14297990), (4, 7148995), (5, 5719196), (7, 4085140), (10, 2859598), (14, 2042570), (20, 1429799), (28, 1021285), (35, 817028), (70, 408514), (140, 204257), (157, 182140), (314, 91070), (628, 45535), (785, 36428), (1099, 26020), (1301, 21980), (1570, 18214), (2198, 13010), (2602, 10990), (3140, 9107), (4396, 6505), (5204, 5495)]