216470320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{245989}}^1$

素因数の和:246013

約数の個数: 40

約数和(自身を含む): 549049680

約数和(自身を除く): 332579360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 245989, 491978, 983956, 1229945, 1967912, 2459890, 2705879, 3935824, 4919780, 5411758, 9839560, 10823516, 13529395, 19679120, 21647032, 27058790, 43294064, 54117580, 108235160, 216470320]

約数ペア:

[(1, 216470320), (2, 108235160), (4, 54117580), (5, 43294064), (8, 27058790), (10, 21647032), (11, 19679120), (16, 13529395), (20, 10823516), (22, 9839560), (40, 5411758), (44, 4919780), (55, 3935824), (80, 2705879), (88, 2459890), (110, 1967912), (176, 1229945), (220, 983956), (440, 491978), (880, 245989)]