20796040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{541}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 48438540

約数和(自身を除く): 27642500

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 541, 620, 961, 1082, 1240, 1922, 2164, 2705, 3844, 4328, 4805, 5410, 7688, 9610, 10820, 16771, 19220, 21640, 33542, 38440, 67084, 83855, 134168, 167710, 335420, 519901, 670840, 1039802, 2079604, 2599505, 4159208, 5199010, 10398020, 20796040]

約数ペア:

[(1, 20796040), (2, 10398020), (4, 5199010), (5, 4159208), (8, 2599505), (10, 2079604), (20, 1039802), (31, 670840), (40, 519901), (62, 335420), (124, 167710), (155, 134168), (248, 83855), (310, 67084), (541, 38440), (620, 33542), (961, 21640), (1082, 19220), (1240, 16771), (1922, 10820), (2164, 9610), (2705, 7688), (3844, 5410), (4328, 4805)]