64527280

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{3617}}^1$

素因数の和:3853

約数の個数: 40

約数和(自身を含む): 150740352

約数和(自身を除く): 86213072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1784, 2230, 3568, 3617, 4460, 7234, 8920, 14468, 17840, 18085, 28936, 36170, 57872, 72340, 144680, 289360, 806591, 1613182, 3226364, 4032955, 6452728, 8065910, 12905456, 16131820, 32263640, 64527280]

約数ペア:

[(1, 64527280), (2, 32263640), (4, 16131820), (5, 12905456), (8, 8065910), (10, 6452728), (16, 4032955), (20, 3226364), (40, 1613182), (80, 806591), (223, 289360), (446, 144680), (892, 72340), (1115, 57872), (1784, 36170), (2230, 28936), (3568, 18085), (3617, 17840), (4460, 14468), (7234, 8920)]