64677440

素因数分解:

$2^6\times 5^1\times {\mathrm{359}}^1\times {\mathrm{563}}^1$

素因数の和:939

約数の個数: 56

約数和(自身を含む): 154716480

約数和(自身を除く): 90039040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 359, 563, 718, 1126, 1436, 1795, 2252, 2815, 2872, 3590, 4504, 5630, 5744, 7180, 9008, 11260, 11488, 14360, 18016, 22520, 22976, 28720, 36032, 45040, 57440, 90080, 114880, 180160, 202117, 404234, 808468, 1010585, 1616936, 2021170, 3233872, 4042340, 6467744, 8084680, 12935488, 16169360, 32338720, 64677440]

約数ペア:

[(1, 64677440), (2, 32338720), (4, 16169360), (5, 12935488), (8, 8084680), (10, 6467744), (16, 4042340), (20, 3233872), (32, 2021170), (40, 1616936), (64, 1010585), (80, 808468), (160, 404234), (320, 202117), (359, 180160), (563, 114880), (718, 90080), (1126, 57440), (1436, 45040), (1795, 36032), (2252, 28720), (2815, 22976), (2872, 22520), (3590, 18016), (4504, 14360), (5630, 11488), (5744, 11260), (7180, 9008)]