20299384

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 45581760

約数和(自身を除く): 25282376

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 97, 101, 148, 194, 202, 259, 296, 388, 404, 518, 679, 707, 776, 808, 1036, 1358, 1414, 2072, 2716, 2828, 3589, 3737, 5432, 5656, 7178, 7474, 9797, 14356, 14948, 19594, 25123, 26159, 28712, 29896, 39188, 50246, 52318, 68579, 78376, 100492, 104636, 137158, 200984, 209272, 274316, 362489, 548632, 724978, 1449956, 2537423, 2899912, 5074846, 10149692, 20299384]

約数ペア:

[(1, 20299384), (2, 10149692), (4, 5074846), (7, 2899912), (8, 2537423), (14, 1449956), (28, 724978), (37, 548632), (56, 362489), (74, 274316), (97, 209272), (101, 200984), (148, 137158), (194, 104636), (202, 100492), (259, 78376), (296, 68579), (388, 52318), (404, 50246), (518, 39188), (679, 29896), (707, 28712), (776, 26159), (808, 25123), (1036, 19594), (1358, 14948), (1414, 14356), (2072, 9797), (2716, 7474), (2828, 7178), (3589, 5656), (3737, 5432)]