20736691820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{631}}^1\times {\mathrm{126397}}^1$

素因数の和:127050

約数の個数: 48

約数和(自身を含む): 46971519168

約数和(自身を除く): 26234827348

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 631, 1262, 2524, 3155, 6310, 8203, 12620, 16406, 32812, 41015, 82030, 126397, 164060, 252794, 505588, 631985, 1263970, 1643161, 2527940, 3286322, 6572644, 8215805, 16431610, 32863220, 79756507, 159513014, 319026028, 398782535, 797565070, 1036834591, 1595130140, 2073669182, 4147338364, 5184172955, 10368345910, 20736691820]

約数ペア:

[(1, 20736691820), (2, 10368345910), (4, 5184172955), (5, 4147338364), (10, 2073669182), (13, 1595130140), (20, 1036834591), (26, 797565070), (52, 398782535), (65, 319026028), (130, 159513014), (260, 79756507), (631, 32863220), (1262, 16431610), (2524, 8215805), (3155, 6572644), (6310, 3286322), (8203, 2527940), (12620, 1643161), (16406, 1263970), (32812, 631985), (41015, 505588), (82030, 252794), (126397, 164060)]