15778220

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 34237728

約数和(自身を除く): 18459508

約数列:

[1, 2, 4, 5, 10, 20, 73, 101, 107, 146, 202, 214, 292, 365, 404, 428, 505, 535, 730, 1010, 1070, 1460, 2020, 2140, 7373, 7811, 10807, 14746, 15622, 21614, 29492, 31244, 36865, 39055, 43228, 54035, 73730, 78110, 108070, 147460, 156220, 216140, 788911, 1577822, 3155644, 3944555, 7889110, 15778220]

約数ペア:

[(1, 15778220), (2, 7889110), (4, 3944555), (5, 3155644), (10, 1577822), (20, 788911), (73, 216140), (101, 156220), (107, 147460), (146, 108070), (202, 78110), (214, 73730), (292, 54035), (365, 43228), (404, 39055), (428, 36865), (505, 31244), (535, 29492), (730, 21614), (1010, 15622), (1070, 14746), (1460, 10807), (2020, 7811), (2140, 7373)]