210526840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{631}}^1$

素因数の和:1100

約数の個数: 64

約数和(自身を含む): 500544000

約数和(自身を除く): 290017160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 439, 631, 760, 878, 1262, 1756, 2195, 2524, 3155, 3512, 4390, 5048, 6310, 8341, 8780, 11989, 12620, 16682, 17560, 23978, 25240, 33364, 41705, 47956, 59945, 66728, 83410, 95912, 119890, 166820, 239780, 277009, 333640, 479560, 554018, 1108036, 1385045, 2216072, 2770090, 5263171, 5540180, 10526342, 11080360, 21052684, 26315855, 42105368, 52631710, 105263420, 210526840]

約数ペア:

[(1, 210526840), (2, 105263420), (4, 52631710), (5, 42105368), (8, 26315855), (10, 21052684), (19, 11080360), (20, 10526342), (38, 5540180), (40, 5263171), (76, 2770090), (95, 2216072), (152, 1385045), (190, 1108036), (380, 554018), (439, 479560), (631, 333640), (760, 277009), (878, 239780), (1262, 166820), (1756, 119890), (2195, 95912), (2524, 83410), (3155, 66728), (3512, 59945), (4390, 47956), (5048, 41705), (6310, 33364), (8341, 25240), (8780, 23978), (11989, 17560), (12620, 16682)]