317778880

素因数分解:

$2^6\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1951}}^1$

素因数の和:2477

約数の個数: 56

約数和(自身を含む): 758586240

約数和(自身を除く): 440807360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 509, 1018, 1951, 2036, 2545, 3902, 4072, 5090, 7804, 8144, 9755, 10180, 15608, 16288, 19510, 20360, 31216, 32576, 39020, 40720, 62432, 78040, 81440, 124864, 156080, 162880, 312160, 624320, 993059, 1986118, 3972236, 4965295, 7944472, 9930590, 15888944, 19861180, 31777888, 39722360, 63555776, 79444720, 158889440, 317778880]

約数ペア:

[(1, 317778880), (2, 158889440), (4, 79444720), (5, 63555776), (8, 39722360), (10, 31777888), (16, 19861180), (20, 15888944), (32, 9930590), (40, 7944472), (64, 4965295), (80, 3972236), (160, 1986118), (320, 993059), (509, 624320), (1018, 312160), (1951, 162880), (2036, 156080), (2545, 124864), (3902, 81440), (4072, 78040), (5090, 62432), (7804, 40720), (8144, 39020), (9755, 32576), (10180, 31216), (15608, 20360), (16288, 19510)]