68499440

素因数分解:

$2^4\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1907}}^1$

素因数の和:2369

約数の個数: 40

約数和(自身を含む): 159699600

約数和(自身を除く): 91200160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 449, 898, 1796, 1907, 2245, 3592, 3814, 4490, 7184, 7628, 8980, 9535, 15256, 17960, 19070, 30512, 35920, 38140, 76280, 152560, 856243, 1712486, 3424972, 4281215, 6849944, 8562430, 13699888, 17124860, 34249720, 68499440]

約数ペア:

[(1, 68499440), (2, 34249720), (4, 17124860), (5, 13699888), (8, 8562430), (10, 6849944), (16, 4281215), (20, 3424972), (40, 1712486), (80, 856243), (449, 152560), (898, 76280), (1796, 38140), (1907, 35920), (2245, 30512), (3592, 19070), (3814, 17960), (4490, 15256), (7184, 9535), (7628, 8980)]