64720160

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:490

約数の個数: 96

約数和(自身を含む): 163658880

約数和(自身を除く): 98938720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 43, 46, 80, 86, 92, 115, 160, 172, 184, 215, 230, 344, 368, 409, 430, 460, 688, 736, 818, 860, 920, 989, 1376, 1636, 1720, 1840, 1978, 2045, 3272, 3440, 3680, 3956, 4090, 4945, 6544, 6880, 7912, 8180, 9407, 9890, 13088, 15824, 16360, 17587, 18814, 19780, 31648, 32720, 35174, 37628, 39560, 47035, 65440, 70348, 75256, 79120, 87935, 94070, 140696, 150512, 158240, 175870, 188140, 281392, 301024, 351740, 376280, 404501, 562784, 703480, 752560, 809002, 1406960, 1505120, 1618004, 2022505, 2813920, 3236008, 4045010, 6472016, 8090020, 12944032, 16180040, 32360080, 64720160]

約数ペア:

[(1, 64720160), (2, 32360080), (4, 16180040), (5, 12944032), (8, 8090020), (10, 6472016), (16, 4045010), (20, 3236008), (23, 2813920), (32, 2022505), (40, 1618004), (43, 1505120), (46, 1406960), (80, 809002), (86, 752560), (92, 703480), (115, 562784), (160, 404501), (172, 376280), (184, 351740), (215, 301024), (230, 281392), (344, 188140), (368, 175870), (409, 158240), (430, 150512), (460, 140696), (688, 94070), (736, 87935), (818, 79120), (860, 75256), (920, 70348), (989, 65440), (1376, 47035), (1636, 39560), (1720, 37628), (1840, 35174), (1978, 32720), (2045, 31648), (3272, 19780), (3440, 18814), (3680, 17587), (3956, 16360), (4090, 15824), (4945, 13088), (6544, 9890), (6880, 9407), (7912, 8180)]