19944860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1871}}^1$

素因数の和:1934

約数の個数: 48

約数和(自身を含む): 46230912

約数和(自身を除く): 26286052

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 1871, 2132, 2665, 3742, 5330, 7484, 9355, 10660, 18710, 24323, 37420, 48646, 76711, 97292, 121615, 153422, 243230, 306844, 383555, 486460, 767110, 997243, 1534220, 1994486, 3988972, 4986215, 9972430, 19944860]

約数ペア:

[(1, 19944860), (2, 9972430), (4, 4986215), (5, 3988972), (10, 1994486), (13, 1534220), (20, 997243), (26, 767110), (41, 486460), (52, 383555), (65, 306844), (82, 243230), (130, 153422), (164, 121615), (205, 97292), (260, 76711), (410, 48646), (533, 37420), (820, 24323), (1066, 18710), (1871, 10660), (2132, 9355), (2665, 7484), (3742, 5330)]