20845860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49633}}^1$

素因数の和:49652

約数の個数: 48

約数和(自身を含む): 66708096

約数和(自身を除く): 45862236

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, 49633, 99266, 148899, 198532, 248165, 297798, 347431, 496330, 595596, 694862, 744495, 992660, 1042293, 1389724, 1488990, 1737155, 2084586, 2977980, 3474310, 4169172, 5211465, 6948620, 10422930, 20845860]

約数ペア:

[(1, 20845860), (2, 10422930), (3, 6948620), (4, 5211465), (5, 4169172), (6, 3474310), (7, 2977980), (10, 2084586), (12, 1737155), (14, 1488990), (15, 1389724), (20, 1042293), (21, 992660), (28, 744495), (30, 694862), (35, 595596), (42, 496330), (60, 347431), (70, 297798), (84, 248165), (105, 198532), (140, 148899), (210, 99266), (420, 49633)]