320425160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{2063}}^1$

素因数の和:2438

約数の個数: 64

約数和(自身を含む): 789108480

約数和(自身を除く): 468683320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 353, 440, 706, 1412, 1765, 2063, 2824, 3530, 3883, 4126, 7060, 7766, 8252, 10315, 14120, 15532, 16504, 19415, 20630, 22693, 31064, 38830, 41260, 45386, 77660, 82520, 90772, 113465, 155320, 181544, 226930, 453860, 728239, 907720, 1456478, 2912956, 3641195, 5825912, 7282390, 8010629, 14564780, 16021258, 29129560, 32042516, 40053145, 64085032, 80106290, 160212580, 320425160]

約数ペア:

[(1, 320425160), (2, 160212580), (4, 80106290), (5, 64085032), (8, 40053145), (10, 32042516), (11, 29129560), (20, 16021258), (22, 14564780), (40, 8010629), (44, 7282390), (55, 5825912), (88, 3641195), (110, 2912956), (220, 1456478), (353, 907720), (440, 728239), (706, 453860), (1412, 226930), (1765, 181544), (2063, 155320), (2824, 113465), (3530, 90772), (3883, 82520), (4126, 77660), (7060, 45386), (7766, 41260), (8252, 38830), (10315, 31064), (14120, 22693), (15532, 20630), (16504, 19415)]