20888974708

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{491783}}^1$

素因数の和:491872

約数の個数: 48

約数和(自身を含む): 43953686784

約数和(自身を除く): 23064712076

約数列:

[1, 2, 4, 7, 14, 28, 37, 41, 74, 82, 148, 164, 259, 287, 518, 574, 1036, 1148, 1517, 3034, 6068, 10619, 21238, 42476, 491783, 983566, 1967132, 3442481, 6884962, 13769924, 18195971, 20163103, 36391942, 40326206, 72783884, 80652412, 127371797, 141141721, 254743594, 282283442, 509487188, 564566884, 746034811, 1492069622, 2984139244, 5222243677, 10444487354, 20888974708]

約数ペア:

[(1, 20888974708), (2, 10444487354), (4, 5222243677), (7, 2984139244), (14, 1492069622), (28, 746034811), (37, 564566884), (41, 509487188), (74, 282283442), (82, 254743594), (148, 141141721), (164, 127371797), (259, 80652412), (287, 72783884), (518, 40326206), (574, 36391942), (1036, 20163103), (1148, 18195971), (1517, 13769924), (3034, 6884962), (6068, 3442481), (10619, 1967132), (21238, 983566), (42476, 491783)]