8974420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4931}}^1$

素因数の和:4960

約数の個数: 48

約数和(自身を含む): 23200128

約数和(自身を除く): 14225708

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 4931, 9862, 19724, 24655, 34517, 49310, 64103, 69034, 98620, 128206, 138068, 172585, 256412, 320515, 345170, 448721, 641030, 690340, 897442, 1282060, 1794884, 2243605, 4487210, 8974420]

約数ペア:

[(1, 8974420), (2, 4487210), (4, 2243605), (5, 1794884), (7, 1282060), (10, 897442), (13, 690340), (14, 641030), (20, 448721), (26, 345170), (28, 320515), (35, 256412), (52, 172585), (65, 138068), (70, 128206), (91, 98620), (130, 69034), (140, 64103), (182, 49310), (260, 34517), (364, 24655), (455, 19724), (910, 9862), (1820, 4931)]