207916515

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{1489}}^1$

素因数の和:1636

約数の個数: 48

約数和(自身を含む): 376552800

約数和(自身を除く): 168636285

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 107, 145, 261, 321, 435, 535, 963, 1305, 1489, 1605, 3103, 4467, 4815, 7445, 9309, 13401, 15515, 22335, 27927, 43181, 46545, 67005, 129543, 139635, 159323, 215905, 388629, 477969, 647715, 796615, 1433907, 1943145, 2389845, 4620367, 7169535, 13861101, 23101835, 41583303, 69305505, 207916515]

約数ペア:

[(1, 207916515), (3, 69305505), (5, 41583303), (9, 23101835), (15, 13861101), (29, 7169535), (45, 4620367), (87, 2389845), (107, 1943145), (145, 1433907), (261, 796615), (321, 647715), (435, 477969), (535, 388629), (963, 215905), (1305, 159323), (1489, 139635), (1605, 129543), (3103, 67005), (4467, 46545), (4815, 43181), (7445, 27927), (9309, 22335), (13401, 15515)]