66448720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{353}}^1$

素因数の和:560

約数の個数: 80

約数和(自身を含む): 167770512

約数和(自身を除く): 101321792

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 181, 208, 260, 353, 362, 520, 706, 724, 905, 1040, 1412, 1448, 1765, 1810, 2353, 2824, 2896, 3530, 3620, 4589, 4706, 5648, 7060, 7240, 9178, 9412, 11765, 14120, 14480, 18356, 18824, 22945, 23530, 28240, 36712, 37648, 45890, 47060, 63893, 73424, 91780, 94120, 127786, 183560, 188240, 255572, 319465, 367120, 511144, 638930, 830609, 1022288, 1277860, 1661218, 2555720, 3322436, 4153045, 5111440, 6644872, 8306090, 13289744, 16612180, 33224360, 66448720]

約数ペア:

[(1, 66448720), (2, 33224360), (4, 16612180), (5, 13289744), (8, 8306090), (10, 6644872), (13, 5111440), (16, 4153045), (20, 3322436), (26, 2555720), (40, 1661218), (52, 1277860), (65, 1022288), (80, 830609), (104, 638930), (130, 511144), (181, 367120), (208, 319465), (260, 255572), (353, 188240), (362, 183560), (520, 127786), (706, 94120), (724, 91780), (905, 73424), (1040, 63893), (1412, 47060), (1448, 45890), (1765, 37648), (1810, 36712), (2353, 28240), (2824, 23530), (2896, 22945), (3530, 18824), (3620, 18356), (4589, 14480), (4706, 14120), (5648, 11765), (7060, 9412), (7240, 9178)]