6639640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1031}}^1$

素因数の和:1072

約数の個数: 64

約数和(自身を含む): 17832960

約数和(自身を除く): 11193320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1031, 1288, 1610, 2062, 3220, 4124, 5155, 6440, 7217, 8248, 10310, 14434, 20620, 23713, 28868, 36085, 41240, 47426, 57736, 72170, 94852, 118565, 144340, 165991, 189704, 237130, 288680, 331982, 474260, 663964, 829955, 948520, 1327928, 1659910, 3319820, 6639640]

約数ペア:

[(1, 6639640), (2, 3319820), (4, 1659910), (5, 1327928), (7, 948520), (8, 829955), (10, 663964), (14, 474260), (20, 331982), (23, 288680), (28, 237130), (35, 189704), (40, 165991), (46, 144340), (56, 118565), (70, 94852), (92, 72170), (115, 57736), (140, 47426), (161, 41240), (184, 36085), (230, 28868), (280, 23713), (322, 20620), (460, 14434), (644, 10310), (805, 8248), (920, 7217), (1031, 6440), (1288, 5155), (1610, 4124), (2062, 3220)]