13513880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:468

約数の個数: 64

約数和(自身を含む): 32667840

約数和(自身を除く): 19153960

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 37, 40, 46, 74, 92, 115, 148, 184, 185, 230, 296, 370, 397, 460, 740, 794, 851, 920, 1480, 1588, 1702, 1985, 3176, 3404, 3970, 4255, 6808, 7940, 8510, 9131, 14689, 15880, 17020, 18262, 29378, 34040, 36524, 45655, 58756, 73048, 73445, 91310, 117512, 146890, 182620, 293780, 337847, 365240, 587560, 675694, 1351388, 1689235, 2702776, 3378470, 6756940, 13513880]

約数ペア:

[(1, 13513880), (2, 6756940), (4, 3378470), (5, 2702776), (8, 1689235), (10, 1351388), (20, 675694), (23, 587560), (37, 365240), (40, 337847), (46, 293780), (74, 182620), (92, 146890), (115, 117512), (148, 91310), (184, 73445), (185, 73048), (230, 58756), (296, 45655), (370, 36524), (397, 34040), (460, 29378), (740, 18262), (794, 17020), (851, 15880), (920, 14689), (1480, 9131), (1588, 8510), (1702, 7940), (1985, 6808), (3176, 4255), (3404, 3970)]