64195120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{72949}}^1$

素因数の和:72973

約数の個数: 40

約数和(自身を含む): 162824400

約数和(自身を除く): 98629280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 72949, 145898, 291796, 364745, 583592, 729490, 802439, 1167184, 1458980, 1604878, 2917960, 3209756, 4012195, 5835920, 6419512, 8024390, 12839024, 16048780, 32097560, 64195120]

約数ペア:

[(1, 64195120), (2, 32097560), (4, 16048780), (5, 12839024), (8, 8024390), (10, 6419512), (11, 5835920), (16, 4012195), (20, 3209756), (22, 2917960), (40, 1604878), (44, 1458980), (55, 1167184), (80, 802439), (88, 729490), (110, 583592), (176, 364745), (220, 291796), (440, 145898), (880, 72949)]