64467920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73259}}^1$

素因数の和:73283

約数の個数: 40

約数和(自身を含む): 163516320

約数和(自身を除く): 99048400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 73259, 146518, 293036, 366295, 586072, 732590, 805849, 1172144, 1465180, 1611698, 2930360, 3223396, 4029245, 5860720, 6446792, 8058490, 12893584, 16116980, 32233960, 64467920]

約数ペア:

[(1, 64467920), (2, 32233960), (4, 16116980), (5, 12893584), (8, 8058490), (10, 6446792), (11, 5860720), (16, 4029245), (20, 3223396), (22, 2930360), (40, 1611698), (44, 1465180), (55, 1172144), (80, 805849), (88, 732590), (110, 586072), (176, 366295), (220, 293036), (440, 146518), (880, 73259)]