8863880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 21384000

約数和(自身を除く): 12520120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 107, 109, 152, 190, 214, 218, 380, 428, 436, 535, 545, 760, 856, 872, 1070, 1090, 2033, 2071, 2140, 2180, 4066, 4142, 4280, 4360, 8132, 8284, 10165, 10355, 11663, 16264, 16568, 20330, 20710, 23326, 40660, 41420, 46652, 58315, 81320, 82840, 93304, 116630, 221597, 233260, 443194, 466520, 886388, 1107985, 1772776, 2215970, 4431940, 8863880]

約数ペア:

[(1, 8863880), (2, 4431940), (4, 2215970), (5, 1772776), (8, 1107985), (10, 886388), (19, 466520), (20, 443194), (38, 233260), (40, 221597), (76, 116630), (95, 93304), (107, 82840), (109, 81320), (152, 58315), (190, 46652), (214, 41420), (218, 40660), (380, 23326), (428, 20710), (436, 20330), (535, 16568), (545, 16264), (760, 11663), (856, 10355), (872, 10165), (1070, 8284), (1090, 8132), (2033, 4360), (2071, 4280), (2140, 4142), (2180, 4066)]