2818720

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:317

約数の個数: 48

約数和(自身を含む): 6773760

約数和(自身を除く): 3955040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 223, 316, 395, 446, 632, 790, 892, 1115, 1264, 1580, 1784, 2230, 2528, 3160, 3568, 4460, 6320, 7136, 8920, 12640, 17617, 17840, 35234, 35680, 70468, 88085, 140936, 176170, 281872, 352340, 563744, 704680, 1409360, 2818720]

約数ペア:

[(1, 2818720), (2, 1409360), (4, 704680), (5, 563744), (8, 352340), (10, 281872), (16, 176170), (20, 140936), (32, 88085), (40, 70468), (79, 35680), (80, 35234), (158, 17840), (160, 17617), (223, 12640), (316, 8920), (395, 7136), (446, 6320), (632, 4460), (790, 3568), (892, 3160), (1115, 2528), (1264, 2230), (1580, 1784)]