8821880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 21288960

約数和(自身を除く): 12467080

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 215, 223, 230, 344, 430, 446, 460, 860, 892, 920, 989, 1115, 1720, 1784, 1978, 2230, 3956, 4460, 4945, 5129, 7912, 8920, 9589, 9890, 10258, 19178, 19780, 20516, 25645, 38356, 39560, 41032, 47945, 51290, 76712, 95890, 102580, 191780, 205160, 220547, 383560, 441094, 882188, 1102735, 1764376, 2205470, 4410940, 8821880]

約数ペア:

[(1, 8821880), (2, 4410940), (4, 2205470), (5, 1764376), (8, 1102735), (10, 882188), (20, 441094), (23, 383560), (40, 220547), (43, 205160), (46, 191780), (86, 102580), (92, 95890), (115, 76712), (172, 51290), (184, 47945), (215, 41032), (223, 39560), (230, 38356), (344, 25645), (430, 20516), (446, 19780), (460, 19178), (860, 10258), (892, 9890), (920, 9589), (989, 8920), (1115, 7912), (1720, 5129), (1784, 4945), (1978, 4460), (2230, 3956)]