23115080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 54172800

約数和(自身を除く): 31057720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 89, 151, 172, 178, 215, 302, 344, 356, 430, 445, 604, 712, 755, 860, 890, 1208, 1510, 1720, 1780, 3020, 3560, 3827, 6040, 6493, 7654, 12986, 13439, 15308, 19135, 25972, 26878, 30616, 32465, 38270, 51944, 53756, 64930, 67195, 76540, 107512, 129860, 134390, 153080, 259720, 268780, 537560, 577877, 1155754, 2311508, 2889385, 4623016, 5778770, 11557540, 23115080]

約数ペア:

[(1, 23115080), (2, 11557540), (4, 5778770), (5, 4623016), (8, 2889385), (10, 2311508), (20, 1155754), (40, 577877), (43, 537560), (86, 268780), (89, 259720), (151, 153080), (172, 134390), (178, 129860), (215, 107512), (302, 76540), (344, 67195), (356, 64930), (430, 53756), (445, 51944), (604, 38270), (712, 32465), (755, 30616), (860, 26878), (890, 25972), (1208, 19135), (1510, 15308), (1720, 13439), (1780, 12986), (3020, 7654), (3560, 6493), (3827, 6040)]